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1. A comparison of the aerodynamic characteristics of four kinds of land surface in wind erosion areas of northern China

Author:
Chunlai Zhang; Yixiao Yuan; Xueyong Zou; Hongtao Wang; Qing Li; Zhenting Wang; Rende Wang
Source:
Catena 2022 v.212 pp. 106112
ISSN:
0341-8162
Subject:
aerodynamics; agricultural land; air flow; catenas; drag coefficient; grasslands; probability; roughness; roughness length; sand; soil; surface roughness; turbulent flow; ultrasonics; wind erosion; wind speed; China
Abstract:
... Aerodynamic characteristics is a crucial factor influencing soil wind erosion, which is closely related to the properties of surface roughness elements. In the expansive arid and semi-arid northern China, grassland, farmland, mobile sandy land, and gobi are the main land surface types that suffer wind erosion to varying degrees. To investigate the aerodynamic characteristics of different surfaces, ...
DOI:
10.1016/j.catena.2022.106112

2. A comprehensive three-dimensional study on Darrieus vertical axis wind turbine with slotted blade to reduce flow separation

Author:
Abolfazl Abdolahifar; S.M.H. Karimian
Source:
Energy 2022 v.248 pp. 123632
ISSN:
0360-5442
Subject:
aerodynamics; energy; mathematical models; torque; wind turbines
Abstract:
... Aerodynamic performance of different designs of slotted blade of a straight blade Darrieus vertical axis wind turbine and their corresponding flow structure are precisely analyzed using three-dimensional numerical simulation. The slots aim to transfer flow from the blade pressure side to its suction side and eventually improve the blade output torque by procrastination of flow separation, especial ...
DOI:
10.1016/j.energy.2022.123632

3. A gradient-descent-based method for design of performance-scaled rotor for floating wind turbine model testing in wave basins

Author:
Can Yang; Zhengshun Cheng; Longfei Xiao; Xinliang Tian; Mingyue Liu; Binrong Wen
Source:
Renewable energy 2022 v.187 pp. 144-155
ISSN:
0960-1481
Subject:
Reynolds number; aerodynamics; algorithms; basins; models; momentum; wind; wind turbines
Abstract:
... When performing the model testing of floating wind turbine (FWT) in wave basins, using geometric-scaled rotors is unable to achieve the desired thrusts due to the dramatic reduction of Reynolds number experienced by model-scaled blades. Alternatively, a performance-scaled rotor (PSR) is usually utilized. In the present study, a gradient-descent-based method, named as CCB-GD method is proposed to c ...
DOI:
10.1016/j.renene.2022.01.068

4. A new approach for roughness representation within urban dispersion models

Author:
F. Di Nicola; E. Brattich; S. Di Sabatino
Source:
Atmospheric environment 2022 v.283 pp. 119181
ISSN:
1352-2310
Subject:
aerodynamics; air quality; environment; green infrastructure; model validation; models; morphometry; pollutants; roughness; vegetation; Italy
Abstract:
... The effects of green infrastructure on pollutant concentrations are greatly variable, essentially depending on the surrounding built-up environment and on local meteorological conditions. To simulate the effects of the presence of trees at urban scale, a reliable methodology is the Computational Fluid Dynamics (CFD) approach, however it needs high calculation costs. An alternative integral dispers ...
DOI:
10.1016/j.atmosenv.2022.119181

5. A review: diffuser augmented wind turbine technologies

Author:
Akin Ilhan; Besir Sahin; Mehmet Bilgili
Source:
International journal of green energy 2022 v.19 no.1 pp. 1-27
ISSN:
1543-5083
Subject:
aerodynamics; energy; wind power; wind speed; wind turbines
Abstract:
... Nowadays renewable energy sources play an important role in partially meeting the global energy demand and protecting the environment. Wind energy technology among the renewable sources is developing rapidly around the World as it becomes a challenging renewable energy technology. One of the latest developed technologies that enable small size wind turbines to operate in the most efficient way is ...
DOI:
10.1080/15435075.2021.1914628

6. A semi-coupled aero-servo-hydro numerical model for floating vertical axis wind turbines operating on TLPs

Author:
Ju Gao; D. Todd Griffith; Mohammad Sadman Sakib; Sung Youn Boo
Source:
Renewable energy 2022 v.181 pp. 692-713
ISSN:
0960-1481
Subject:
aerodynamics; hydrodynamics; mathematical models; prediction; wind
Abstract:
... Floating vertical axis wind turbines (VAWTs) have many advantages over floating horizontal axis wind turbines (HAWTs) at large scales in deep water; however, there are several key challenges to overcome as well. One of the challenges is accurate prediction of the dynamic motion and loads performance of a floating VAWT. A new semi-coupled aero-servo-hydro method is developed to assess dynamic respo ...
DOI:
10.1016/j.renene.2021.09.076

7. Aerodynamic coefficients of irregular non-spherical particles at intermediate Reynolds numbers

Author:
C. Castang; S. Laín; D. García; M. Sommerfeld
Source:
Powder technology 2022 v.402 pp. 117341
ISSN:
0032-5910
Subject:
Reynolds number; aerodynamics; biomass; coal; combustion; flow resistance; pulp and paper industry; standard deviation; statistical models; technology; torque
Abstract:
... In industrial processes such as those related with paper industry, coal or biomass combustion, particles can take irregular non-spherical shapes. However, in related numerical computations the assumption of spherical particle is customary, mainly because the fluid dynamic forces acting on such irregular particles are unknown to a large extent. This contribution aims to generate new information abo ...
DOI:
10.1016/j.powtec.2022.117341

8. Aerodynamic design and optimization of blade end wall profile of turbomachinery based on series convolutional neural network

Author:
Qiuwan Du; Like Yang; Liangliang Li; Tianyuan Liu; Di Zhang; Yonghui Xie
Source:
Energy 2022 v.244 pp. 122617
ISSN:
0360-5442
Subject:
aerodynamics; energy; mass flow; neural networks; normal distribution; prediction; regression analysis; system optimization
Abstract:
... End wall contraction is an effective approach to reduce the substantial secondary loss in the cascade with low aspect ratio. This paper proposed a series convolutional neural network architecture (SCNN) to improve the design optimization problem of end wall profile of a turbine stator blade. The specific implementation of the architecture is discussed in detail. The effect of the train size and se ...
DOI:
10.1016/j.energy.2021.122617

9. Airborne and marine microplastics from an oceanographic survey at the Baltic Sea: An emerging role of air-sea interaction?

Author:
Luca Ferrero; Lorenzo Scibetta; Piotr Markuszewski; Mikolaj Mazurkiewicz; Violetta Drozdowska; Przemysław Makuch; Patrycja Jutrzenka-Trzebiatowska; Adriana Zaleska-Medynska; Sergio Andò; Francesco Saliu; E. Douglas Nilsson; E. Bolzacchini
Source:
Science of the total environment 2022 v.824 pp. 153709
ISSN:
0048-9697
Subject:
aerodynamics; air; environment; grasshoppers; microplastics; pollution; polyethylene; polyethylene terephthalates; polyurethanes; surveys; Baltic Sea
Abstract:
... Microplastics (MPs) pollution is one of the most important problems of the Earth. They have been found in all the natural environments, including oceans and the atmosphere. In this study, the concentrations of both atmospheric and marine MPs were measured over the Baltic along a research cruise that started in the Gdansk harbour, till the Gotland island, and the way back. A deposition box (based o ...
DOI:
10.1016/j.scitotenv.2022.153709

10. An approach for cancer risk-based apportionment of PM₂.₅ constituents and sources

Author:
Ashutosh K Pathak; Mukesh Sharma; Pavan K Nagar
Source:
Human and ecological risk assessment 2022 v.28 no.2 pp. 205-221
ISSN:
1549-7860
Subject:
United States Environmental Protection Agency; aerodynamics; carcinogens; coal; dust; environmental assessment; gasoline; humans; liquid petroleum gas; municipal solid waste; particle size; power plants; risk; toxicity; India
Abstract:
... The primary concern of PM₂.₅ (particle size of an aerodynamic diameter 2.5 micrometers or less) is its adverse health effects. As not all PM₂.₅ particles are equally toxic, a uniform PM₂.₅ mass control across the emitting sources may not provide the maximum health benefits. A new approach that apportions PM₂.₅ constituents, based on their toxicity and further realigns them into the sources, is dev ...
DOI:
10.1080/10807039.2022.2033612

11. Assessment of PM2.5 using satellite lidar observations: Effect of bio-mass burning emissions over India

Author:
N.B. Lakshmi; E.A. Resmi; D. Padmalal
Source:
Science of the total environment 2022 v.833 pp. 155215
ISSN:
0048-9697
Subject:
aerodynamics; aerosols; climatology; energy recovery; environment; lidar; particulates; pollution; renewable energy sources; satellites; winter; India; Indian Ocean; Indo-Gangetic Plain
Abstract:
... The present study estimates the particulate matter with aerodynamic diameters less than 2.5 μm (PM₂.₅) over the Indian sub-continent using near-surface retrieval of aerosol extinction coefficient (2007–2021) of Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) onboard Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite. Climatology of wintertime PM₂.₅ duri ...
DOI:
10.1016/j.scitotenv.2022.155215

12. Association between long-term exposure to particulate matter and childhood cancer: A retrospective cohort study

Author:
Jae Min Lee; Tae-Hee Lee; Soontae Kim; Minkyo Song; Sanghyuk Bae
Source:
Environmental research 2022 v.205 pp. 112418
ISSN:
0013-9351
Subject:
aerodynamics; air; carcinogens; childhood; chronic exposure; cohort studies; cumulative exposure; databases; exposure assessment; health insurance; particulates; research; Korean Peninsula
Abstract:
... Although particulate matter is a known carcinogen, its association with childhood cancer is inconclusive. The present study aimed to examine the association between long-term exposure to particulate matter and childhood cancer. A retrospective cohort was constructed from the claims database of the Korea National Health Insurance Service, including children born in seven metropolitan cities in Kore ...
DOI:
10.1016/j.envres.2021.112418

13. Association of ambient PM1 with hospital admission and recurrence of stroke in China

Author:
Tao Liu; Yong Jiang; Jianxiong Hu; Zixiao Li; Yuming Guo; Xing Li; Jianpeng Xiao; Lixia Yuan; Guanhao He; Weilin Zeng; Haidong Kan; Zuhua Rong; Gongbo Chen; Jun Yang; Yongjun Wang; Wenjun Ma
Source:
Science of the total environment 2022 v.828 pp. 154131
ISSN:
0048-9697
Subject:
acute exposure; aerodynamics; air pollution; environment; hemorrhage; hospitals; meteorological data; models; particulates; risk factors; stroke; China
Abstract:
... Particulate matter (PM) pollution is a well-known risk factor of stroke. However, little is known about the association between PM₁ (aerodynamic diameter ≤ 1.0 μm) and stroke. We estimated the associations of short-term exposure to PM₁ with hospital admission and recurrence of stoke in China. Stroke data were derived from the Chinese Stroke Center Alliance (CASA) program conducted in 1458 hospital ...
DOI:
10.1016/j.scitotenv.2022.154131

14. Association of exposure to PM2.5-bound metals with maternal thyroid function in early pregnancy

Author:
Liping Qiu; Weiying Shen; Chunmei Ye; Junqi Wu; Shufa Zheng; Bin Lou; Zhijian Chen; Peiwei Xu; Dandan Xu; Xiaofeng Wang; Baihuan Feng
Source:
Science of the total environment 2022 v.810 pp. 151167
ISSN:
0048-9697
Subject:
aerodynamics; air quality; antibodies; blood serum; child health; demographic statistics; environment; hospitals; iodide peroxidase; pregnancy; prenatal care; public health; regression analysis; thyroglobulin; thyroid function; triiodothyronine; China
Abstract:
... Epidemiological evidence linking metals bound to ambient particulate matters with aerodynamic diameter less than 2.5 μm (PM₂.₅) and maternal thyroid function is limited. In this study, we investigated the association of PM₂.₅-bound metals with maternal thyroid hormones (TH) during the first trimester. We retrospectively reviewed data for 2528 pregnant women attending prenatal care in Jinhua Matern ...
DOI:
10.1016/j.scitotenv.2021.151167

15. Associations between differences in anemia-related blood cell parameters and short-term exposure to ambient particle pollutants in middle-aged and elderly residents in Beijing, China

Author:
Ke Gao; Xi Chen; Lina Zhang; Yuan Yao; Wu Chen; Hanxiyue Zhang; Yiqun Han; Tao Xue; Junxia Wang; Liping Lu; Mei Zheng; Xinghua Qiu; Tong Zhu
Source:
Science of the total environment 2022 v.816 pp. 151520
ISSN:
0048-9697
Subject:
acute exposure; aerodynamics; anemia; biomarkers; carbon; cotinine; elderly; environment; erythrocyte count; hematocrit; hemoglobin; inflammation; particle size; risk factors; China
Abstract:
... Anemia is a highly prevalent disease among older populations, with multiple adverse health outcomes, and particles exposure is a potential risk factor for anemia. However, evidence on associations of exposure to particles with small size with anemia-related blood cell parameters levels in the elderly is limited, and the underlying mechanisms are unclear. Based on a panel study in Beijing, we found ...
DOI:
10.1016/j.scitotenv.2021.151520

16. Associations of air pollutants with pneumonia hospital admissions in Qingdao, China: a prospective cohort study

Author:
Hai-Tao Wang; Hong Zhang; Fu-Zhong Xue; Lin Zhao; Wu-Chun Cao
Source:
Environmental science and pollution research 2022 v.29 no.19 pp. 27779-27787
ISSN:
0944-1344
Subject:
aerodynamics; air; air pollution; cohort studies; hospitals; morbidity; nitrogen dioxide; nonlinear models; ozone; people; pneumonia; relative risk; research; sulfur dioxide; China
Abstract:
... Studies about the pneumonia morbidity effects of various air pollution exposure are still limited in China. We aimed to explore the short-term effect of air pollutants exposure on pneumonia admission and identify the vulnerable groups in Qingdao, China. From January 2015 to October 2017, a prospective cohort involving 433,032 participants across 3 counties in Qingdao were enrolled in the study. Di ...
DOI:
10.1007/s11356-021-17892-7

17. Camel whistling vocalisations: male and female call structure and context in Camelus bactrianus and Camelus dromedarius

Author:
Ilya A. Volodin; Elena V. Volodina; Marina V. Rutovskaya
Source:
Bioacoustics 2022 v.31 no.2 pp. 132-147
ISSN:
2165-0586
Subject:
Bovidae; Camelus bactrianus; Camelus dromedarius; Cervidae; adults; aerodynamics; bioacoustics; body size; females; locomotion; males
Abstract:
... Among ruminants, some species of cervids, bovids and camelids are capable of producing very high-frequency (HF) calls potentially produced by the aerodynamic whistle mechanism. We analysed the HF calls of six individual adult captive camels: three male and one female two-humped Camelus bactrianus and one male and one female one-humped C. dromedarius. Context of emission differed between sexes and ...
DOI:
10.1080/09524622.2021.1889403

18. Ceramide metabolism mediates the impaired glucose homeostasis following short-term black carbon exposure: A targeted lipidomic analysis

Author:
Yifan Xu; Xi Chen; Yiqun Han; Wu Chen; Teng Wang; Jicheng Gong; Yunfei Fan; Hanxiyue Zhang; Lina Zhang; Haonan Li; Qi Wang; Yuan Yao; Tao Xue; Junxia Wang; Xinghua Qiu; Chengli Que; Mei Zheng; Tong Zhu
Source:
Science of the total environment 2022 v.829 pp. 154657
ISSN:
0048-9697
Subject:
aerodynamics; biochemical pathways; blood glucose; carbon; ceramides; confidence interval; environment; glucose; homeostasis; lipidomics; particulates; sphingomyelins; China
Abstract:
... Ambient particulate matter (PM), especially its carbonaceous composition black carbon (BC) increases cardiometabolic risks, yet the underlying mechanisms are incompletely understood. Ceramides (Cer; a class of sphingolipids) are biological intermediates in glucose metabolism. To explore whether Cer metabolism mediates impaired glucose homeostasis following short-term PM exposure. In a panel study ...
DOI:
10.1016/j.scitotenv.2022.154657

19. Characterisation of Particle Size and Viability of SARS-CoV-2 Aerosols from a Range of Nebuliser Types Using a Novel Sampling Technique

Author:
Susan Paton; Simon Clark; Antony Spencer; Isobel Garratt; Ikshitaa Dinesh; Katy-Anne Thompson; Allan Bennett; Thomas Pottage
Source:
Viruses 2022 v.14 no.3 pp. -
ISSN:
1999-4915
Subject:
Severe acute respiratory syndrome coronavirus 2; aerodynamics; aerosols; animals; atomization; geometry; liquids; lungs; particle size; particle size distribution; regression analysis; relative humidity; standard deviation; viability; viruses
Abstract:
... Little is understood about the impact of nebulisation on the viability of SARS-CoV-2. In this study, a range of nebulisers with differing methods of aerosol generation were evaluated to determine SARS-CoV-2 viability following aerosolization. The aerosol particle size distribution was assessed using an aerosol particle sizer (APS) and SARS-CoV-2 viability was determined after collection into liqui ...
DOI:
10.3390/v14030639

20. Combining Himawari-8 AOD and deep forest model to obtain city-level distribution of PM2.5 in China

Author:
Zhihao Song; Bin Chen; Jianping Huang
Source:
Environmental pollution 2022 v.297 pp. 118826
ISSN:
0269-7491
Subject:
aerodynamics; aerosols; air; forests; human health; model validation; models; particulates; pollution control; satellites; spatial data; spring; wind; winter; China
Abstract:
... PM₂.₅ (fine particulate matter with aerodynamics diameter <2.5 μm) is the most important component of air pollutants, and has a significant impact on the atmospheric environment and human health. Using satellite remote sensing aerosol optical depth (AOD) to explore the hourly ground PM₂.₅ distribution is very helpful for PM₂.₅ pollution control. In this study, Himawari-8 AOD, meteorological factor ...
DOI:
10.1016/j.envpol.2022.118826

21. Comparative investigation of the aerodynamic performance for several Shrouded Archimedes Spiral Wind Turbines

Author:
Abdelaziz G. Refaie; H.S. Abdel Hameed; Mohamed A.A. Nawar; Youssef A. Attai; Mohamed H. Mohamed
Source:
Energy 2022 v.239 pp. 122295
ISSN:
0360-5442
Subject:
aerodynamics; energy; mass flow; wind; wind power; wind turbines
Abstract:
... Wind energy is one of the most rapidly developing renewable energy technologies. Conventional turbines, which are commercially available in some cities, are designed to run at relatively high speeds to be sufficiently effective but not in the urban areas. A new type of horizontal axis wind turbine, namely, Archimedes Spiral Wind Turbine (ASWT) is designed for urban usage. The aerodynamic performan ...
DOI:
10.1016/j.energy.2021.122295

22. Design method and performance analysis of a hybrid-electric power-train applied in a 30-passenger aircraft

Author:
Manuel A. Rendón; Marcelo Assato; Vitor A.C. Martins; Patrícia H. Hallak; Alexandre S. Altgott; Ricardo Graça; Zaire Landy; Nicolas Lima Oliveira; Rafael Grande Pancini Delmonte
Source:
Journal of cleaner production 2022 v.339 pp. 130560
ISSN:
0959-6526
Subject:
aerodynamics; aircraft; algorithms; computer software; hybrids; momentum; propellers
Abstract:
... Design methods to transform actual aircraft propulsion systems into hybrid, and to analyze the performance must be developed. Present work details the first approach of a preliminary design method and evaluation of a hybrid-electric power-train for a conventional airplane. High fidelity models of the components are developed based on the physical relations of the involved variables. The main chara ...
DOI:
10.1016/j.jclepro.2022.130560

23. Developing a wavelet-AI hybrid model for short- and long-term predictions of the pollutant concentration of particulate matter10

Author:
S. M. Mirzadeh; F. Nejadkoorki; S. A. Mirhoseini; V. Moosavi
Source:
International journal of environmental science and technology 2022 v.19 no.1 pp. 209-222
ISSN:
1735-1472
Subject:
aerodynamics; air quality; fuzzy logic; neural networks; particulates; pollutants; prediction; regression analysis; wavelet
Abstract:
... Prediction of the particle concentration has received a great deal of research interest in recent decades, especially in the cities exposed to dust storms; hence, the use of early warning systems based on more accurate predictions to inform about the air quality situation in the next hours is very important. Thus, this study was conducted to improve the prediction accuracy of the particulate matte ...
DOI:
10.1007/s13762-020-03123-y

24. Effect of trailing edge dual synthesis jets actuator on aerodynamic characteristics of a straight-bladed vertical axis wind turbine

Author:
Peilin Wang; Qingsong Liu; Chun Li; Weipao Miao; Shuai Luo; Kang Sun; Kailun Niu
Source:
Energy 2022 v.238 pp. 121792
ISSN:
0360-5442
Subject:
aerodynamics; energy; mathematical models; momentum; turbulent flow; wind turbines
Abstract:
... Based on the improved effect of synthetic jet (SJ) on airfoil aerodynamic characteristics and the configuration characteristics of dual synthesis jets actuator (DSJ), the effects of DSJ actuators arranged at the trailing edge on the aerodynamic efficiency of straight-blade vertical axis wind turbine (SB-VAWT) were studied. By comparing with the experimental results, the accuracy of the numerical s ...
DOI:
10.1016/j.energy.2021.121792

25. Energy management strategy of hybrid energy system for a multi-lobes hybrid air vehicle

Author:
Junhui Meng; Nuo Ma; Fanmin Meng; Xiaohui Zhang; Li Liu
Source:
Energy 2022 pp. 124539
ISSN:
0360-5442
Subject:
aerodynamics; air; energy; flight; lithium; maneuverability; monitoring; simulation models; solar radiation; specific energy; stratosphere; transportation
Abstract:
... Due to the combination of aerodynamic and buoyant lift, a multi-lobes hybrid air vehicle (HAV) is very suitable for cargo transportation, communications and surveillance in the stratosphere. Solar cells can be used as an ideal energy source for the HAV because of its flat upper surface and sufficient solar radiation in the stratosphere. A hybrid energy system that combines solar cells, fuel cells ...
DOI:
10.1016/j.energy.2022.124539

26. Estimating aerosol optical extinction across eastern China in winter during 2014–2019 using the random forest approach

Author:
Xuwu Chen; Xiaodong Li; Xin Li; Jie Liang; Jinjin Li; Gaojie Chen; Ziming Pei; Xue Wei; Guangming Zeng
Source:
Atmospheric environment 2022 v.269 pp. 118864
ISSN:
1352-2310
Subject:
aerodynamics; aerosols; air; air quality; algorithms; atmospheric visibility; data collection; environment; issues and policy; land cover; meteorological data; models; pollution; solar radiation; statistics; wavelengths; winter; China
Abstract:
... Air quality has been continuously improved in recent years across eastern China, yet severe haze pollution episodes still frequently occur in winter. Optical extinction of aerosols can provide a proxy for assessing haze pollution levels, especially for submicron particles (i.e., PM₁, aerodynamic diameter less than 1.0 μm) because they are close to the wavelength of visible solar radiation and are ...
DOI:
10.1016/j.atmosenv.2021.118864

27. Estimating grapevine transpiration in greenhouse with three different methods in a Penman–Monteith model in Northeast China

Author:
Siyu Zheng; Tieliang Wang; Xinguang Wei
Source:
Irrigation science 2022 v.40 no.1 pp. 13-27
ISSN:
0342-7188
Subject:
Vitis; aerodynamics; canopy; cold; convection; developmental stages; greenhouses; heat transfer coefficient; irrigation management; models; transpiration; water conservation; China
Abstract:
... Accurate estimate of transpiration is fundamental to develop water-saving management practices and optimize irrigation management. Penman–Monteith (P–M) model based on aerodynamic resistance (rₐ) estimated from heat transfer coefficient method and Perrier logarithm method were used to calculate the hourly and daily grapevine transpiration in solar greenhouse. The results show that the daytime cano ...
DOI:
10.1007/s00271-021-00753-z

28. Evidence of susceptibility to autism risks associated with early life ambient air pollution: A systematic review

Author:
Xin Yu; Md Mostafijur Rahman; Zhongying Wang; Sarah A. Carter; Joel Schwartz; Zhanghua Chen; Sandrah P. Eckel; Daniel Hackman; Jiu-Chiuan Chen; Anny H. Xiang; Rob McConnell
Source:
Environmental research 2022 v.208 pp. 112590
ISSN:
0013-9351
Subject:
aerodynamics; air; air pollution; autism; children; education; folic acid; genotype; gestational diabetes; maternal nutrition; nitrogen dioxide; ozone; particulates; research; risk; systematic review
Abstract:
... Many studies have found associations between early life air pollution exposure and subsequent onset of autism spectrum disorder (ASD). However, characteristics that affect susceptibility remain unclear. This systematic review examined epidemiologic studies on the modifying roles of social, child, genetic and maternal characteristics in associations between prenatal and early postnatal air pollutio ...
DOI:
10.1016/j.envres.2021.112590

29. Exposure to air pollutants during pregnancy and after birth increases the risk of neonatal hyperbilirubinemia

Author:
Jialu Zhuang; Jie Hu; Fei Bei; Jiahu Huang; Liangjun Wang; Junjie Zhao; Ruiying Qian; Jianhua Sun
Source:
Environmental research 2022 v.206 pp. 112523
ISSN:
0013-9351
Subject:
aerodynamics; air pollutants; air pollution; air quality; birth weight; carbon monoxide; confidence interval; gestational age; hyperbilirubinemia; models; nitrogen dioxide; nomogram; odds ratio; particulates; patients; pediatrics; pregnancy; premature birth; regression analysis; research; risk; sulfur dioxide; China
Abstract:
... Exposure to air pollution is associated with increased risks of several adverse conditions in newborns, such as preterm birth. Whether air pollution is associated with neonatal hyperbilirubinemia remains unclear. We aimed to develop and validate an air-quality-based model to better predict neonatal hyperbilirubinemia. A multicenter, population-based cohort of neonates with a gestational age (GA) ≥ ...
DOI:
10.1016/j.envres.2021.112523

30. Facile nanostructured zinc oxide coating technique for antibacterial and antifouling air filters with low pressure drop

Author:
Ji-Hyeon Kim; Ga-Hyun Lee; Junfei Ma; Seunghun Lee; Chang Su Kim
Source:
Journal of colloid and interface science 2022 v.612 pp. 496-503
ISSN:
0021-9797
Subject:
aerodynamics; air; bioaerosols; biofilm; energy; hydrophobicity; polypropylenes; surface area; topology; zinc oxide
Abstract:
... Air filters effectively filtrate external contaminants including pathogenic bioaerosols; however, they also act as culture sites for the pathogenic bacteria captured in nutrient organic pollutants. Although many researchers have applied various antibacterial coatings to filters, the coating application inevitably increased the pressure drop, leading to the low efficiency and high energy consumptio ...
DOI:
10.1016/j.jcis.2021.12.139

31. Field measurements of PM2.5 emissions from typical solid fuel combustion in rural households in Fenhe Basin, China

Author:
Bin Zhang; Cen Wang; Jian Sun; Kun He; Haijiang Zou; Hongmei Xu; Jianjun Li; Kin-Fai Ho; Zhenxing Shen
Source:
Environmental research 2022 v.212 pp. 113361
ISSN:
0013-9351
Subject:
aerodynamics; basins; biomass; coal; energy; fuel combustion; fuelwood; furnaces; lignin; organic carbon; pollutants; pyrolysis; research; China
Abstract:
... Solid fuel is the most widely used energy source for cooking and heating in the rural households in developing countries. In this study, emissions from 13 fuel–stove combinations were studied in two typical rural villages in the Fenhe Basin, Shanxi Province, China. This study gathered data on the emission characteristics of particles with an aerodynamic diameter of ≤2.5 μm (PM₂.₅), organic carbon ...
DOI:
10.1016/j.envres.2022.113361

32. Fluxes of H2S and SO2 above a subtropical forest under natural and disturbed conditions induced by temporal land-use change

Author:
Piaopiao Ke; Qian Yu; Xiaodong Ge; Wenzhao Wu; Ronghua Kang; Bin Zhao; Lei Duan
Source:
Science of the total environment 2022 v.811 pp. 152084
ISSN:
0048-9697
Subject:
aerodynamics; aerosols; air quality; climate change; deforestation; environment; forest canopy; forest litter; forest management; freshwater; hydrogen sulfide; land use change; quality control; sulfur; sulfur dioxide; tropical forests; uncertainty; China
Abstract:
... Hydrogen sulfide (H₂S) is one of predominant biogenic sulfur gases, influencing aerosol formation and climate change. There is considerable uncertainty of the global budget of H₂S due to limited field data, especially in subtropical forests. In addition, an interaction between soil-emitted H₂S and ambient sulfur dioxide (SO₂) might exist within forest ecosystems. In this study, the aerodynamic gra ...
DOI:
10.1016/j.scitotenv.2021.152084

33. Formation of fine particles (PM10) from Zhundong high‑sodium coal at entrained flow gasification condition in a flat-flame burner reactor

Author:
Lei Huang; Xianxian Zhang; Lingxue Kong; Jin Bai; Ji Wang; Hao Lu; Longfei Gao; Huaizhu Li; Zongqing Bai; Ping Li; Wen Li
Source:
Fuel processing technology 2022 v.231 pp. 107225
ISSN:
0378-3820
Subject:
aerodynamics; aluminum silicates; coal; combustion; fly ash; gasification; heat exchangers; particle size; particle size distribution; particulates; sodium; synthesis gas; water vapor
Abstract:
... Zhundong coal has very high content of alkali metals and alkaline earth metals (AAEMs), which produces much particulate matter (PM) during combustion and gasification, resulting in many ash related problems. Fine PM with aerodynamic size less than 10 μm (PM₁₀) during entrained flow gasification is a critical factor which affects deposition behavior of fly ash in syngas heat exchanger. In this work ...
DOI:
10.1016/j.fuproc.2022.107225

34. Geographical and temporal encoding for improving the estimation of PM2.5 concentrations in China using end-to-end gradient boosting

Author:
Naisen Yang; Haoze Shi; Hong Tang; Xin Yang
Source:
Remote sensing of environment 2022 v.269 pp. 112828
ISSN:
0034-4257
Subject:
aerodynamics; aerosols; environment; human health; models; particulates; satellites; China
Abstract:
... Fine particulate matter with aerodynamic diameters less than 2.5 μm (PM₂.₅) profoundly affects environmental systems and human health. To dynamically monitor fine particulate matter over large geographic areas, some machine learning methods have been utilized to estimate its concentration using satellite-based aerosol optical depth (AOD). To improve the estimation of PM₂.₅ concentration across lar ...
DOI:
10.1016/j.rse.2021.112828

35. Heavy haze pollution during the COVID-19 lockdown in the Beijing-Tianjin-Hebei region, China

Author:
Xin Zhang; Zhongzhi Zhang; Zhisheng Xiao; Guigang Tang; Hong Li; Rui Gao; Xu Dao; Yeyao Wang; Wenxing Wang
Source:
Journal of environmental sciences (China) 2022 v.114 pp. 170-178
ISSN:
1001-0742
Subject:
COVID-19 infection; aerodynamics; air quality; carbon; industry; particulates; pollution; water solubility; China
Abstract:
... To investigate the characteristics of particulate matter with an aerodynamic diameter less than 2.5 μm (PM₂.₅) and its chemical compositions in the Beijing-Tianjin-Hebei (BTH) region of China during the novel coronavirus disease (COVID-19) lockdown, the ground-based data of PM₂.₅, trace gases, water-soluble inorganic ions, and organic and elemental carbon were analyzed in three typical cities (Bei ...
DOI:
10.1016/j.jes.2021.08.030

36. Highly sensitive, breathable and durable E-textiles integrated by graphene ink via scalable aerodynamics assisted screen printing

Author:
Zhen Li; Feifei Wang; Lin Liu; Yixin Liu; Jikai Liu; Xinxin Chen; Juming Yao
Source:
Cellulose 2022 v.29 no.8 pp. 4661-4671
ISSN:
0969-0239
Subject:
aerodynamics; air; air flow; cellulose; clothing; cotton; durability; fabrics; graphene; permeability
Abstract:
... Flexible wearable electronic textiles (E-textiles) are predicted to apply in the intelligence management of physical training for automatic, intelligent, and scientific health management. Recently, printing electronic is one of the attractive processes for the large-scale manufacturing of patterned E-textiles. However, it is an enormous challenge that achieve sensing functionality without sacrific ...
DOI:
10.1007/s10570-022-04544-3

37. Hysteresis and Surface Shear Stresses During Snow-Particle Aeolian Transportation

Author:
Hirofumi Niiya; Kouichi Nishimura
Source:
Boundary-layer meteorology 2022 v.183 no.3 pp. 447-467
ISSN:
0006-8314
Subject:
aerodynamics; friction; friction velocity; hysteresis; meteorology; methodology; shear stress; snow; wind speed
Abstract:
... Surface shear stresses produced by wind and particle collision play a key role in aerodynamic entrainment and splash processes. The fluid shear stress at the surface during aeolian transport has been researched for decades; however, the equilibrium property reported in the literature, numerical simulations, and experiments is inconsistent. To discuss this discrepancy, this study investigates fluid ...
DOI:
10.1007/s10546-022-00688-8

38. Identification of nonparametric thermodynamic model and optimization of ocean thermal energy conversion radial inflow turbine

Author:
Yanjun Liu; Yifan Xue; Yun Chen; Weimin Liu; Yunzheng Ge; Li Zhang
Source:
Applied energy 2022 v.321 pp. 119348
ISSN:
0306-2619
Subject:
aerodynamics; algorithms; energy conversion; experimental design; normal distribution; system optimization; thermal energy; thermodynamic models
Abstract:
... Turbine is one of the key components of ocean thermal energy conversion system, and its aerodynamic performance and geometric structure directly affect the performance of the system. At present, the design methods of radial inflow turbines can be roughly divided into three categories: trial method, best velocity ratio method and screening method, which follow no concrete rules and are not comprehe ...
DOI:
10.1016/j.apenergy.2022.119348

39. Individual and contextual socioeconomic status as effect modifier in the air pollution-birth outcome association

Author:
Felipe Parra do Nascimento; Marcia Furquim de Almeida; Nelson Gouveia
Source:
Science of the total environment 2022 v.803 pp. 149790
ISSN:
0048-9697
Subject:
aerodynamics; air; air pollution; education; environment; gestational age; low birth weight; nitrogen dioxide; odds ratio; ozone; particulates; pregnancy; regression analysis; socioeconomic status; Brazil
Abstract:
... Several studies have examined whether air pollution is associated with adverse births outcomes, but it is not clear if socioeconomic status (SES) modifies this relationship.We investigated if maternal education and area-level socioeconomic status modified the relationship between ozone, nitrogen dioxide and particulate matter with aerodynamic diameter <10 μm (PM₁₀) on preterm births (PTB; gestatio ...
DOI:
10.1016/j.scitotenv.2021.149790

40. Influence of Reynolds number consideration for aerodynamic characteristics of airfoil on the blade design of small horizontal axis wind turbine

Author:
Neeraj Verma; Beena D. Baloni
Source:
International journal of green energy 2022 v.19 no.7 pp. 733-746
ISSN:
1543-5083
Subject:
Reynolds number; aerodynamics; momentum; prediction; wind speed; wind turbines
Abstract:
... Airfoil’s aerodynamic characteristics are vital for the design and performance evaluation of wind turbine rotor blades through blade element momentum theory. Generally, the airfoil’s aerodynamic characteristics are evaluated at an approximated fixed Reynolds number. However, during a typical operation of a wind turbine, the Reynolds number varies along the length of the blade as well as with wind ...
DOI:
10.1080/15435075.2021.1960356

41. Investigating the effects of wind concentrator on power performance improvement of crossflow wind turbine

Author:
Mohamed Heragy; Takaaki Kono; Takahiro Kiwata
Source:
Energy conversion and management 2022 v.255 pp. 115326
ISSN:
0196-8904
Subject:
administrative management; aerodynamics; energy conversion; power generation; wind; wind tunnels; wind turbines
Abstract:
... Small wind turbines are efficient for solving power supply problems in remote off-grid regions. A crossflow wind turbine is a drag-based small vertical axis wind turbine, which is suitable for small-scale power generation in the built environment because of its low aerodynamic noise. However, the power performance of a crossflow wind turbine is generally lower than that of a Savonius wind turbine. ...
DOI:
10.1016/j.enconman.2022.115326

42. Investigation of aerodynamic forces and flow field of an H-type vertical axis wind turbine based on bionic airfoil

Author:
Yanfeng Zhang; Zhiping Guo; Xinyu Zhu; Yuan Li; Xiaowen Song; Chang Cai; Yasunari Kamada; Takao Maeda; Qing’an Li
Source:
Energy 2022 v.242 pp. 122999
ISSN:
0360-5442
Subject:
aerodynamics; energy; mathematical models; torque; wind speed; wind turbines
Abstract:
... This paper investigates the effect of bionic airfoil on the aerodynamic characteristic and flow field of an H-type vertical axis wind turbine (VAWT). The pressure acting on the blade surface and flow field around the blade were predicted at different tip speed ratios (TSRs) and the angles of attack were predicted by numerical simulation. As a result, it was showed that the maximum value of lift fo ...
DOI:
10.1016/j.energy.2021.122999

43. Investigation of the mechanism of aerodynamic separation of rice husks from brown rice following paddy hulling by coupled CFD-DEM

Author:
Peiyu Chen; Yanlong Han; Fuguo Jia; Dan Zhao; Xiangyi Meng; Anqi Li; Yanhao Chu; Hongwei Zhao
Source:
Biosystems engineering 2022 v.218 pp. 200-215
ISSN:
1537-5110
Subject:
aerodynamics; air flow; brown rice; paddies; rice hulls; turbulent flow
Abstract:
... Aerodynamic separation of rice husks from brown rice grains after paddy husking is one of the important processes in rice processing. So far, the realisation of complete separation of rice husks from brown rice is still a challenging task. In this study, computational fluid dynamics (CFD) and discrete element method (DEM) were used to simulate the process, and the simulation results were verified ...
DOI:
10.1016/j.biosystemseng.2022.03.015

44. Load mitigation method for wind turbines during emergency shutdowns

Author:
Zhiyu Jiang; Yihan Xing
Source:
Renewable energy 2022 v.185 pp. 978-995
ISSN:
0960-1481
Subject:
aerodynamics; models; wind
Abstract:
... Wind turbines experience countless shutdowns during their lifetimes. A shutdown is a transient process characterised by a pitch-to-feather manoeuvre of three blades. Such a pitch manoeuvre is often collective, open-loop, and can substantially slow the rotor speed within several seconds. However, undesirable structural responses may arise because of the imbalanced aerodynamic loads acting on the ro ...
DOI:
10.1016/j.renene.2021.12.068

45. Mass and number concentration distribution of marine aerosol in the Western Pacific and the influence of continental transport

Author:
Yining Ma; Xiangguang Zhang; Jinyuan Xin; Wenyu Zhang; Zifa Wang; Quan Liu; Fangkun Wu; Lili Wang; Yilong Lyu; Qinglu Wang; Yongjing Ma
Source:
Environmental pollution 2022 v.298 pp. 118827
ISSN:
0269-7491
Subject:
aerodynamics; aerosols; air; latitude; marine environment; mass transfer; particle size; pollution; wind speed; Pacific Ocean; South Asia
Abstract:
... We quantify for the first time marine aerosol properties and their differences in the offshore and remote ocean in the mid-latitude South Asian waters, low-latitude South Asian waters, and equatorial waters of the Western Pacific Ocean, based on shipboard cruise observations conducted by the Western Pacific Ocean Scientific Observation Network in winter 2018, and further investigate the effects of ...
DOI:
10.1016/j.envpol.2022.118827

46. Maternal exposure to air pollution during pregnancy and child's cognitive, language, and motor function: ECLIPSES study

Author:
Lucía Iglesias-Vázquez; Anne-Claire Binter; Josefa Canals; Carmen Hernández-Martínez; Núria Voltas; Albert Ambròs; Silvia Fernández-Barrés; Laura Pérez-Crespo; Mònica Guxens; Victoria Arija
Source:
Environmental research 2022 v.212 pp. 113501
ISSN:
0013-9351
Subject:
absorbance; aerodynamics; air; air pollution; children; cognition; infant development; land use; lifestyle; maternal exposure; nitrogen; nitrogen dioxide; particulates; pregnancy; regression analysis; research; Spain
Abstract:
... Prenatal exposure to air pollution, even at low levels, has been associated with negative effects on a child's neuropsychological functioning. The present work aimed to investigate the associations between prenatal exposure to air pollution on a child's cognitive, language, and motor function at 40 days of age in a highly exposed area of Spain. From the ECLIPSES study population, the present work ...
DOI:
10.1016/j.envres.2022.113501

47. Measurement of HONO flux using the aerodynamic gradient method over an agricultural field in the Huaihe River Basin, China

Author:
Fanhao Meng; Min Qin; Wu Fang; Jun Duan; Ke Tang; Helu Zhang; Dou Shao; Zhitang Liao; Yan Feng; Yong Huang; Ting Ni; Pinhua Xie; Jianguo Liu; Wenqing Liu
Source:
Journal of environmental sciences (China) 2022 v.114 pp. 297-307
ISSN:
1001-0742
Subject:
aerodynamics; agricultural land; crop rotation; diurnal variation; nitrous acid; photolysis; solar radiation; watersheds; China
Abstract:
... To investigate nitrous acid (HONO) levels and potential HONO sources above crop rotation fields. The HONO fluxes were measured by the aerodynamic gradient (AG) method from 14 December 2019 to 2 January 2020 over an agricultural field in the Huaihe River Basin. The ambient HONO levels were measured at two different heights (0.15 and 1.5 m), showing a typical diurnal cycle with low daytime levels an ...
DOI:
10.1016/j.jes.2021.09.005

48. Microplastics in the atmosphere of Ahvaz City, Iran

Author:
Sajjad Abbasi; Neamatollah Jaafarzadeh; Amir Zahedi; Maryam Ravanbakhsh; Somayeh Abbaszadeh; Andrew Turner
Source:
Journal of environmental sciences (China) 2023 v.126 pp. 95-102
ISSN:
1001-0742
Subject:
aerodynamics; air; autumn; color; digestion; microplastics; particulates; polyethylene terephthalates; polypropylenes; summer; temperature; wind; winter; China; Iran
Abstract:
... Airborne particulate matter (PM) with an aerodynamic size cutoff of 10 µm (PM10) has been collected using a high volume air sampler at two locations (urban and residential) in the city of Ahvaz, Iran, for sixteen 24-hour periods over four months (late summer to early winter). Microplastics (MPs) in the PM were isolated after sample digestion and were subsequently characterised by established techn ...
DOI:
10.1016/j.jes.2022.02.044

49. Modeling of near wake characteristics in floating offshore wind turbines using an actuator line method

Author:
Alireza Arabgolarcheh; Sahar Jannesarahmadi; Ernesto Benini
Source:
Renewable energy 2022 v.185 pp. 871-887
ISSN:
0960-1481
Subject:
aerodynamics; energy; evolution; wind
Abstract:
... Fast and effective numerical models describing the effect of platform motion on the performance of floating offshore wind turbines (FOWTs) are fundamental to assess energy harvesting potential in large offshore wind farms. The purpose of this paper is to implement a CFD-based Computationally-Efficient approach based on an actuator line model (ALM) for FOWTs aerodynamics. Such a tool aims at comple ...
DOI:
10.1016/j.renene.2021.12.099

50. New Insight into the Measurements of Particle-Bound Metals in the Urban and Remote Atmospheres of the Sarajevo Canton and Modeled Impacts of Particulate Air Pollution in Bosnia and Herzegovina

Author:
Sabina Žero; Silva Žužul; Jasna Huremović; Gordana Pehnec; Ivan Bešlić; Jasmina Rinkovec; Ranka Godec; Noah Kittner; Karla Pavlović; Nino Požar; Juan J. Castillo; Sergio Sanchez; Manousos I. Manousakas; Markus Furger; Andre S.H. Prevot; Griša Močnik; Katja Džepina
Source:
Environmental science & technology 2022 v.56 no.11 pp. 7052-7062
ISSN:
1520-5851
Subject:
aerodynamics; aerosols; air; air pollution; air quality; atomic absorption spectrometry; chemical composition; energy; health effects assessments; models; particulates; technology; Bosnia-Herzegovina
Abstract:
... The Sarajevo Canton Winter Field Campaign 2018 (SAFICA) was a project that took place in winter 2017–2018 with an aim to characterize the chemical composition of aerosol in the Sarajevo Canton, Bosnia and Herzegovina (BiH), which has one of the worst air qualities in Europe. This paper presents the first characterization of the metals in PM₁₀ (particulate matter aerodynamic diameters ≤10 μm) from ...
DOI:
10.1021/acs.est.1c07037

51. Novel methodology for performance characterization of vertical axis wind turbines (VAWT) prototypes through active driving mode

Author:
Luis Santamaría; Jesús Manuel Fernández Oro; Katia María Argüelles Díaz; Andrés Meana-Fernández; Bruno Pereiras; Sandra Velarde-Suárez
Source:
Energy conversion and management 2022 v.258 pp. 115530
ISSN:
0196-8904
Subject:
administrative management; aerodynamics; energy conversion; wind; wind tunnels
Abstract:
... Vertical axis wind turbines (VAWT) are called to have an important role in the definitive penetration of renewable energies in the near future. Although still under development, they are considered good candidates for urban environments and offshore generation in deep waters. For its experimental characterization, wind tunnel testing of small-scaled VAWTs is usually employed. However, self-startin ...
DOI:
10.1016/j.enconman.2022.115530

52. Novel piezoelectric wind energy harvester based on coupled galloping phenomena with characterization and quantification of its dynamic behavior

Author:
Hoyoung Kim; Junyoung Lee; Jongwon Seok
Source:
Energy conversion and management 2022 v.266 pp. 115849
ISSN:
0196-8904
Subject:
administrative management; aerodynamics; dynamic models; electric power; energy conversion; wind power
Abstract:
... In this study, a novel piezoelectric energy harvester is proposed based on coupled transverse and interference galloping to improve the energetic performance of the conventional transverse galloping-based piezoelectric energy harvester. To quantify the stochastic characteristics of the aerodynamic force under the coupled galloping effects, we developed a special approach that allowed us to success ...
DOI:
10.1016/j.enconman.2022.115849

53. Numerical analysis of a water mist spray: The importance of various numerical and physical parameters, including the drag force

Author:
Yuanjun Liu; Tarek Beji; Martin Thielens; Zhi Tang; Zheng Fang; Bart Merci
Source:
Fire safety journal 2022 v.127 pp. 103515
ISSN:
0379-7112
Subject:
aerodynamics; drag coefficient; droplets; fire safety; mists; turbulent flow
Abstract:
... This paper presents a comprehensive set of numerical simulations for the characterization of a water mist spray emerging from a nozzle positioned at 2.2 m from floor level and operating at a pressure of 1.0 MPa. The droplet volume-median diameter is about 90 μm and the spray half-angle is around 42°. The spray shape is visualized using a laser sheet and the water flux density distribution on the g ...
DOI:
10.1016/j.firesaf.2021.103515

54. Numerical and experimental study of the ducted diffuser effect on improving the aerodynamic performance of a micro horizontal axis wind turbine

Author:
Mohammad Ali Rahmatian; Pooyan Hashemi Tari; Mohammad Mojaddam; Sahand Majidi
Source:
Energy 2022 v.245 pp. 123267
ISSN:
0360-5442
Subject:
aerodynamics; kinetic energy; throat; turbulent flow; wind speed; wind turbines
Abstract:
... In the present study, the impact of utilizing an encompassing duct on the aerodynamic performance of a micro horizontal axis wind turbine (HAWT) was numerically and experimentally studied. A duct comprised of a diffuser and a flange was designed and constructed. A wind simulator facility and a micro scale wind turbine were employed to conduct the experimental investigations. Measurements of veloci ...
DOI:
10.1016/j.energy.2022.123267

55. Numerical investigation of the benefits of serrated Gurney flaps on an axial flow fan

Author:
Xuemin Ye; Nan Zheng; Jiami Hu; Chunxi Li; Zhanpu Xue
Source:
Energy 2022 v.252 pp. 124072
ISSN:
0360-5442
Subject:
acoustics; aerodynamics; energy; turbulent flow
Abstract:
... A novel serrated Gurney flap (SGF) is proposed, and a large eddy simulation is employed to simulate a two-stage variable-pitch axial fan with SGFs. The influence of the novel blades on the aerodynamic performance, sound characteristics and internal dynamics of the fan was examined, and the possible mechanism for noise reduction and vortex structure were investigated. Results indicate that the peak ...
DOI:
10.1016/j.energy.2022.124072

56. Optimization of a vertical axis wind turbine with a deflector under unsteady wind conditions via Taguchi and neural network applications

Author:
Wei-Hsin Chen; Jhih-Syun Wang; Min-Hsing Chang; Anh Tuan Hoang; Su Shiung Lam; Eilhann E. Kwon; Veeramuthu Ashokkumar
Source:
Energy conversion and management 2022 v.254 pp. 115209
ISSN:
0196-8904
Subject:
Taguchi method; administrative management; aerodynamics; energy conversion; experimental design; models; wind direction; wind turbines
Abstract:
... Vertical axis wind turbines (VAWTs), so named because of their vertical axis of rotation, are a sustainable, opportune, and versatile means of producing energy. Their operation is not dependent on wind direction, making them suitable for use in settings with turbulent and inconsistent winds (e.g., urban locations), and they can be installed at the bottom of towers for easier installation and maint ...
DOI:
10.1016/j.enconman.2022.115209

57. Opuntia ficus-indica Alleviates Particulate Matter 10 Plus Diesel Exhaust Particles (PM10D)—Induced Airway Inflammation by Suppressing the Expression of Inflammatory Cytokines and Chemokines

Author:
Young-Sil Lee; Won-Kyung Yang; Ye-Rin Park; Yang-Chun Park; In-Jae Park; Geung-Joo Lee; Hyung-Sik Kang; Bong-Kyun Kim; Seung-Hyung Kim
Source:
Plants 2022 v.11 no.4 pp. -
ISSN:
2223-7747
Subject:
Opuntia ficus-indica; aerodynamics; arginine; blood serum; chemokine CXCL2; histopathology; inflammation; interleukin-5; interleukin-6; ion channels; ligands; mucins; neutrophils; particulates; prostaglandin synthase
Abstract:
... Particulate matter (PM) exposure may cause adverse health effects such as respiratory disorders. We evaluated the protective effects of various Opuntia ficus-indica (OFI) extracts on airway inflammation associated with exposure to PM10D with an aerodynamic diameter <10 μm (PM10) and diesel exhaust particles (DEP). BALB/c mice were exposed to PM10D via intranasal tracheal injection three times over ...
DOI:
10.3390/plants11040520

58. Oral bioavailability reveals an overestimation of the toxicity of polycyclic aromatic hydrocarbons in atmospheric particulate matter

Author:
Joel Sánchez-Piñero; Paula Gómez-Meijide; Estefanía Concha-Graña; Jorge Moreda-Piñeiro; Soledad Muniategui-Lorenzo; Purificación López-Mahía
Source:
Environmental chemistry letters 2022 v.20 no.1 pp. 49-57
ISSN:
1610-3653
Subject:
aerodynamics; anthracenes; bioavailability; carcinogenicity; dialysis; environmental science; fluorenes; gastrointestinal system; health effects assessments; human health; humans; intestinal absorption; particulates; phenanthrenes; risk
Abstract:
... Polycyclic aromatic hydrocarbons (PAHs) in atmospheric particulate matter have adverse effects on human health, yet total PAH concentrations should overestimate the toxicity compared to the bioavailable amount of PAHs. To explore this hypothesis, we measured PAHs oral bioavailability in vitro in particulate matter with aerodynamic diameter lower than 10 µm (PM₁₀) using a test that mimics the human ...
DOI:
10.1007/s10311-021-01354-0

59. PM2.5 drives bacterial functions for carbon, nitrogen, and sulfur cycles in the atmosphere

Author:
Huan Liu; Zhichao Hu; Meng Zhou; Hao Zhang; Xiaole Zhang; Yang Yue; Xiangwu Yao; Jing Wang; Chuanwu Xi; Ping Zheng; Xiangyang Xu; Baolan Hu
Source:
Environmental pollution 2022 v.295 pp. 118715
ISSN:
0269-7491
Subject:
aerodynamics; air; ammonium; databases; ecology; metabolism; nitrogen; organic carbon; particulates; pollution control; prediction; quantitative polymerase chain reaction; sulfates; sulfur; China
Abstract:
... Airborne bacteria may absorb the substance from the atmospheric particles and play a role in biogeochemical cycling. However, these studies focused on a few culturable bacteria and the samples were usually collected from one site. The metabolic potential of a majority of airborne bacteria on a regional scale and their driving factors remain unknown. In this study, we collected particulates with ae ...
DOI:
10.1016/j.envpol.2021.118715

60. Per- and polyfluoroalkyl substances (PFASs) in airborne particulate matter (PM2.0) emitted during floor waxing: A pilot study

Author:
Jiaqi Zhou; Karsten Baumann; Naomi Chang; Glenn Morrison; Wanda Bodnar; Zhenfa Zhang; Joanna M. Atkin; Jason D. Surratt; Barbara J. Turpin
Source:
Atmospheric environment 2022 v.268 pp. 118845
ISSN:
1352-2310
Subject:
aerodynamics; body weight; breathing; confidence interval; dust; electrospray ionization mass spectrometry; environment; immunotoxicity; particulates; perfluorohexanoic acid; perfluorooctane sulfonic acid; risk; spectrometers; ultra-performance liquid chromatography; uncertainty
Abstract:
... Per- and polyfluoroalkyl substances (PFASs), with their water- and heat-resistant properties, have been widely used in industrial and consumer products, including floor waxes. Adverse health effects are associated with PFAS exposures (e.g., increased risk of cancer and immunotoxicity); however, exposures resulting from the use of PFAS-containing products are poorly understood. This study examines ...
DOI:
10.1016/j.atmosenv.2021.118845

61. Prenatal and early postnatal exposure to ambient particulate matter and early childhood neurodevelopment: A birth cohort study

Author:
Hanjin Wang; Hongling Zhang; Juxiao Li; Jiaqiang Liao; Jiangtao Liu; Chen Hu; Xiaojie Sun; Tongzhang Zheng; Wei Xia; Shunqing Xu; Shiqiong Wang; Yuanyuan Li
Source:
Environmental research 2022 v.210 pp. 112946
ISSN:
0013-9351
Subject:
aerodynamics; childhood; children; cohort studies; equations; infant development; land use; maternal exposure; models; neurodevelopment; particulates; postpartum period; pregnancy; research
Abstract:
... Adverse impacts of prenatal or postnatal ambient particulate matter exposure have been identified on offspring neurodevelopment. However, it is unclear whether the effect in the two exposure periods is different for early childhood neurodevelopment. This study aimed to evaluate and compare the associations of prenatal and early postnatal exposure to ambient particulate matter with offspring neurod ...
DOI:
10.1016/j.envres.2022.112946

62. Prenatal exposure to air pollution and neurodevelopmental delay in children: A birth cohort study in Foshan, China

Author:
Xi Su; Shiyu Zhang; Qingmei Lin; Yinling Wu; Yin Yang; Hong Yu; Saijun Huang; Weidong Luo; Xing Wang; Hualiang Lin; Liming Ma; Zilong Zhang
Source:
Science of the total environment 2022 v.816 pp. 151658
ISSN:
0048-9697
Subject:
aerodynamics; air pollution; cohort studies; confidence interval; developmental stages; environment; maternal exposure; neurodevelopment; nitrogen dioxide; particulates; pregnancy; regression analysis; risk; sulfur dioxide; women; China
Abstract:
... Prenatal exposure to air pollution may have adverse effects on neurodevelopment in children, but epidemiological evidence remains inconclusive. To investigate the associations between prenatal air pollution exposure and neurodevelopmental delay. We conducted a birth cohort study based on pregnancy and birth registry in Foshan, China. Exposure to particulate matter of aerodynamic diameter < 1 μm, 2 ...
DOI:
10.1016/j.scitotenv.2021.151658

63. Quantification of green infrastructure effects on airborne nanoparticles dispersion at an urban scale

Author:
Arvind Tiwari; Prashant Kumar
Source:
Science of the total environment 2022 v.838 pp. 155778
ISSN:
0048-9697
Subject:
aerodynamics; air quality; coagulation; environment; grasslands; green infrastructure; particulates; planting; traffic; uncertainty; urban areas
Abstract:
... Many dispersion models are available to simulate the mass concentrations of particulate matter in an urban environment. Still, fewer are capable of simulating the effect of green infrastructure (GI) on the airborne nanoparticles represented by total particle number concentration (ToNC). We developed an integrated approach capable of simulating the dispersion of airborne nanoparticles under the var ...
DOI:
10.1016/j.scitotenv.2022.155778

64. Quantifying impacts of shell augmentation on power output of airborne wind energy system at elevated heights

Author:
Qazi Shahzad Ali; Man-Hoe Kim
Source:
Energy 2022 v.239 pp. 121839
ISSN:
0360-5442
Subject:
aerodynamics; energy; mass flow; mathematical models; wind power
Abstract:
... This work presents an in-depth design analysis of full-scale airborne wind energy systems. The prime focus is to quantify the impact of an airfoil-based shell carrying a 3-bladed rotor tailored to airborne needs. A high-fidelity numerical approach is used to gain insights into the design's performance by solving the numerical model of the resulting system. Three-dimensional simulations are carried ...
DOI:
10.1016/j.energy.2021.121839

65. Quartz crystal microbalance with thermally-controlled surface adhesion for an efficient fine dust collection and sensing

Author:
Il Ryu Jang; Soon In Jung; Gunhee Lee; Inyong Park; Sang Bok Kim; Hoe Joon Kim
Source:
Journal of hazardous materials 2022 v.424 pp. 127560
ISSN:
0304-3894
Subject:
adhesion; aerodynamics; air pollution; detection limit; dust; polystyrenes; quartz crystal microbalance
Abstract:
... The mass concentration of fine dust or particles acts as a standard measure to express the severity of air pollution. In connection with this, many related sensor technologies have been suggested for both indoor and outdoor uses. Among several technologies, the direct measurement of the dust mass using resonant platforms is the most preferable as it possesses multiple advantages including high sen ...
DOI:
10.1016/j.jhazmat.2021.127560

66. Research on the rotor speed and aerodynamic characteristics of a dynamic yawing wind turbine with a short-time uniform wind direction variation

Author:
Shuang Zhao; Jianwen Wang; Yuxia Han; Zhen Liu
Source:
Energy 2022 v.249 pp. 123580
ISSN:
0360-5442
Subject:
aerodynamics; energy; torque; wind direction; wind turbines
Abstract:
... Dynamic yawing caused by wind direction variation is an important operating case for wind turbines. Because experimental data are lacking, existing studies assume that the rotor speed and pitch angle are constant, which cannot reflect the actual working states of wind turbines in the short-time variation of the wind direction. In this study, the rotor speed and power characteristics of wind turbin ...
DOI:
10.1016/j.energy.2022.123580

67. Retrieving particulate matter concentrations over the contiguous United States using CALIOP observations

Author:
Travis D. Toth; Jianglong Zhang; Mark A. Vaughan; Jeffrey S. Reid; James R. Campbell
Source:
Atmospheric environment 2022 v.274 pp. 118979
ISSN:
1352-2310
Subject:
United States Environmental Protection Agency; aerodynamics; aerosols; air quality; environment; lidar; motivation; particulates; wildfires
Abstract:
... Using twelve years (2007–2018) of NASA Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) near-surface 532 nm aerosol extinction retrievals, multi-year mean and trends of particulate matter (PM) concentrations are derived over the contiguous United States (CONUS). Different from past studies that use column integrated aerosol optical thickness, here only near-surface CALIOP aerosol extincti ...
DOI:
10.1016/j.atmosenv.2022.118979

68. Risk assessment of consumer spray products using in vitro lung surfactant function inhibition, exposure modelling and chemical analysis

Author:
J.B. Sørli; S. Sengupta; A.C.Ø. Jensen; V. Nikiforov; P.A. Clausen; K.S. Hougaard; Sara Højriis; M. Frederiksen; N. Hadrup
Source:
Food and chemical toxicology 2022 v.164 pp. 112999
ISSN:
0278-6915
Subject:
aerodynamics; chemical analysis; exposure scenario; liquids; lung function; lungs; margin of safety; particle size distribution; risk; surfactants; toxicity; toxicology
Abstract:
... Consumer spray products release aerosols that can potentially be inhaled and reach the deep parts of the lungs. A thin layer of liquid, containing a mixture of proteins and lipids known as lung surfactant, coats the alveoli. Inhibition of lung surfactant function can lead to acute loss of lung function. We focused on two groups of spray products; 8 cleaning and 13 impregnation products, and in the ...
DOI:
10.1016/j.fct.2022.112999

69. Short- and intermediate-term exposure to ambient fine particulate elements and leukocyte epigenome-wide DNA methylation in older men: the Normative Aging Study

Author:
Cuicui Wang; Andres Cardenas; John N. Hutchinson; Allan Just; Jonathan Heiss; Lifang Hou; Yinan Zheng; Brent A. Coull; Anna Kosheleva; Petros Koutrakis; Andrea A. Baccarelli; Joel D. Schwartz
Source:
Environment international 2022 v.158 pp. 106955
ISSN:
0160-4120
Subject:
DNA methylation; aerodynamics; cardiovascular diseases; emotions; environment; immunity; inflammation; leukocytes; mortality; neuroplasticity; particulates
Abstract:
... Several epigenome-wide association studies (EWAS) of ambient particulate matter with aerodynamic diameter ≤ 2.5 µm (PM₂.₅) have been reported. However, EWAS of PM₂.₅ elements (PEs), reflecting different emission sources, are very limited. We performed EWAS of short- and intermediate-term exposure to PM₂.₅ and 13 PEs. We hypothesized that significant changes in DNAm may vary by PM₂.₅ mass and its e ...
DOI:
10.1016/j.envint.2021.106955

70. Significant Contribution of Coarse Black Carbon Particles to Light Absorption in North China Plain

Author:
Jiandong Wang; Shuxiao Wang; Jiaping Wang; Yang Hua; Chao Liu; Jing Cai; QingCheng Xu; Xiaotang Xu; Shengyao Jiang; Guangjie Zheng; Jingkun Jiang; Runlong Cai; Wei Zhou; Ganzhen Chen; Yuzhi Jin; Qiang Zhang; Jiming Hao
Source:
Environmental science & technology letters 2022 v.9 no.2 pp. 134-139
ISSN:
2328-8930
Subject:
absorption; aerodynamics; aerosols; carbon; climate; environmental science; human health; technology; transmission electron microscopy; China
Abstract:
... Black carbon (BC) has adverse impacts on human health and significantly influences the global climate as one of the major atmospheric heating contributors. These effects strongly depend on the microphysical properties of BC. BC particles and their distributions are mostly monitored and studied by online refractory BC instruments, which account for particles with aerodynamic diameters <1 μm. During ...
DOI:
10.1021/acs.estlett.1c00953

71. Size-fractionated PM-bound PAHs in urban and rural atmospheres of northern Thailand for respiratory health risk assessment

Author:
Wittawat Insian; Nuttipon Yabueng; Wan Wiriya; Somporn Chantara
Source:
Environmental pollution 2022 v.293 pp. 118488
ISSN:
0269-7491
Subject:
aerodynamics; air; biomass; breathing; carcinogenicity; health effects assessments; molecular weight; pollutants; pollution; risk; rural areas; smoke; urban areas; Thailand
Abstract:
... Size-fractionated particulate matters (SPMs) in a range of 9.0 to 0.43 μm, classified based on aerodynamic diameter (dₐₑ) as fine PMs (0.43 μm ≤ dₐₑ < 2.1 μm) and coarse PMs (2.1 μm ≤ dₐₑ < 9.0 μm) were collected by cascade impactors (7 fractions) during smoke haze (SH) and non-smoke haze (NSH) seasons in urban and rural areas of Chiang Mai, Thailand. Their polycyclic aromatic hydrocarbons (PAHs) ...
DOI:
10.1016/j.envpol.2021.118488

72. Soil erosion-reducing efficiency of litter cover varies with litter shape and coverage in a desert ecosystem

Author:
Shengqi Wang; Gaweng Baima; Jianzhen Ge; Wenhui Fu; Baojun Lin; Shuai Zhao; Runyu Tao; Qianluo Qiao; Liang Guo; Jiancun Kou
Source:
Journal of arid environments 2022 v.196 pp. 104655
ISSN:
0140-1963
Subject:
Bothriochloa ischaemum; Caragana korshinskii; Populus simonii; aerodynamics; ecosystems; friction velocity; roughness; soil; spring; vegetation; wind erosion; wind speed; winter
Abstract:
... Wind erosion happens frequently in winter and spring, when vegetation is bare and the surface soil is prone to erosion. Therefore, the erosion resistance provided by litter is important. To investigate the soil erosion-reducing efficiency of different types of litter, litter-covered sites of Populus simonii (LPS), Caragana korshinskii (LCK) and Bothriochloa ischaemum (LBI) were studied, respective ...
DOI:
10.1016/j.jaridenv.2021.104655

73. Source contributions and drivers of physiological and psychophysical cobenefits from major air pollution control actions in North China

Author:
Wenjun Meng; Guofeng Shen; Huizhong Shen; Yilin Chen; Jianmin Ma; Junfeng Liu; Hefa Cheng; Jianying Hu; Yi Wan; Shu Tao
Source:
Environmental science & technology 2022 v.56 no.4 pp. 2225-2235
ISSN:
1520-5851
Subject:
aerodynamics; air pollution control; clean energy; economic development; humans; indoor air pollution; particulates; technology
Abstract:
... North China is among the most polluted regions in the country, and human exposure to PM₂.₅ (particulate matter with an aerodynamic diameter less than 2.5 μm) in this region has led to severe health consequences. The region has also benefited the most from emission reductions in recent years. It is of interest to understand to what extent and through which paths emissions from different sectors cau ...
DOI:
10.1021/acs.est.1c07171

74. Surrogate drag model of non-spherical fragments based on artificial neural networks

Author:
Dajun Xin; Junsheng Zeng; Kun Xue
Source:
Powder technology 2022 v.404 pp. 117412
ISSN:
0032-5910
Subject:
aerodynamics; data collection; drag coefficient; gravity; hazard characterization; prediction; statistics; technology
Abstract:
... The hazard evaluation of the fragments produced from an explosion requires an accurate prediction of the motion of fragments subjected to gravity and aerodynamic forces. The drag coefficient (Cd) is among the most crucial components of various aerodynamic models. Limited experiments cannot reproduce the Cd (Mach) curves of all shapes of fragments. In this study, we develop a surrogate model of the ...
DOI:
10.1016/j.powtec.2022.117412

75. Targeting mitochondrial permeability transition pore ameliorates PM2.5-induced mitochondrial dysfunction in airway epithelial cells

Author:
Yingmin Liang; Pak Hin Chu; Linwei Tian; Kin Fai Ho; Mary Sau Man Ip; Judith Choi Wo Mak
Source:
Environmental pollution 2022 v.295 pp. 118720
ISSN:
0269-7491
Subject:
aerodynamics; apoptosis; calcium; cell viability; cyclophilins; cyclosporine; epithelium; lung function; membrane potential; mitochondria; mitochondrial membrane; particulates; permeability; pollution; reactive oxygen species; risk; therapeutics
Abstract:
... Particulate matter with aerodynamic diameter not larger than 2.5 μm (PM₂.₅) escalated the risk of respiratory diseases. Mitochondrial dysfunction may play a pivotal role in PM₂.₅-induced airway injury. However, the potential effect of PM₂.₅ on mitochondrial permeability transition pore (mPTP)-related airway injury is still unknown. This study aimed to investigate the role of mPTP in PM₂.₅-induced ...
DOI:
10.1016/j.envpol.2021.118720

76. The impact of trailing edge flap on the aerodynamic performance of small-scale horizontal axis wind turbine

Author:
Aktham Mansi; Devrim Aydin
Source:
Energy conversion and management 2022 v.256 pp. 115396
ISSN:
0196-8904
Subject:
Weibull statistics; administrative management; aerodynamics; energy conversion; momentum; wind power; wind speed; wind turbines
Abstract:
... Despite the significant progress in the wind energy field, there is always space for new blade profiles to improve the efficiency and the energy extracted of HAWTs. To improve the performance of small-scale HAWTs, a new blade profile design using a fixed trailing-edge flap was investigated using blade element momentum (BEM) approach and validated using computational fluid dynamics (CFD) approach. ...
DOI:
10.1016/j.enconman.2022.115396

77. The relationship between greenspace and personal exposure to PM2.5 during walking trips in Delhi, India

Author:
William Mueller; Paul Wilkinson; James Milner; Miranda Loh; Sotiris Vardoulakis; Zoë Petard; Mark Cherrie; Naveen Puttaswamy; Kalpana Balakrishnan; D.K. Arvind
Source:
Environmental pollution 2022 v.305 pp. 119294
ISSN:
0269-7491
Subject:
Daphne; aerodynamics; air pollution; asthma; autumn; data collection; green infrastructure; land use; monsoon season; normalized difference vegetation index; particulates; spring; standard deviation; summer; winter; India
Abstract:
... The presence of urban greenspace may lead to reduced personal exposure to air pollution via several mechanisms, for example, increased dispersion of airborne particulates; however, there is a lack of real-time evidence across different urban contexts. Study participants were 79 adolescents with asthma who lived in Delhi, India and were recruited to the Delhi Air Pollution and Health Effects (DAPHN ...
DOI:
10.1016/j.envpol.2022.119294

78. Using incomplete complex modes for model updating of monopiled offshore wind turbines

Author:
Shuai Cong; Sau-Lon James Hu; Hua-Jun Li
Source:
Renewable energy 2022 v.181 pp. 522-534
ISSN:
0960-1481
Subject:
aerodynamics; computers; finite element analysis; hydrodynamics; models; soil structure; wind; wind turbines
Abstract:
... The soil-structure interface stiffness/damping, structure damping, aerodynamic damping, and hydrodynamic added mass are the four major sources of error while modeling a monopiled offshore wind turbine by using finite element methods. This study develops a comprehensive strategy, involving optimal sensor placement, complex mode expansion, and cross-model cross-mode-based model updating technique, f ...
DOI:
10.1016/j.renene.2021.09.022

79. Wind-capture-accelerate device for performance improvement of vertical-axis wind turbines: External diffuser system

Author:
Limin Kuang; Jie Su; Yaoran Chen; Zhaolong Han; Dai Zhou; Kai Zhang; Yongsheng Zhao; Yan Bao
Source:
Energy 2022 v.239 pp. 122196
ISSN:
0360-5442
Subject:
aerodynamics; energy; wind
Abstract:
... The unsatisfactory power performance hinders the development of vertical-axis wind turbines (VAWTs). Installing a wind-capture-accelerate device outside the VAWT is one possible way to alleviate this situation. In the current study, an external diffuser system is designed to improve the power performance of the VAWT. The three-dimensional improved delayed detached-eddy simulation is employed to pr ...
DOI:
10.1016/j.energy.2021.122196

80. “Phoenix in Flight”: an unique fruit morphology ensures wind dispersal of seeds of the phoenix tree (Firmiana simplex (L.) W. Wight)

Author:
Shi-Rui Gan; Jun-Cheng Guo; Yun-Xiao Zhang; Xiao-Fan Wang; Lan-Jie Huang
Source:
BMC plant biology 2022 v.22 no.1 pp. 113
ISSN:
1471-2229
Subject:
aerodynamics; flight; fruit morphology; fruiting; pericarp; seed dispersal; terminal velocity; trees; wind
Abstract:
... BACKGROUND: Many seed plants produce winged diaspores that use wind to disperse their seeds. The morphology of these diaspores is directly related to the seed dispersal potential. The majority of winged diaspores have flat wings and only seeds; however, some angiosperms, such as Firmiana produce winged fruit with a different morphology, whose seed dispersal mechanisms are not yet fully understood. ...
DOI:
10.1186/s12870-022-03494-z

81. A 10-year assessment of ambient fine particles and related health endpoints in a large Mediterranean city

Author:
Yusef Omidi Khaniabadi; Pierre Sicard
Source:
Chemosphere 2021 v.278 pp. 130502
ISSN:
0045-6535
Subject:
COVID-19 infection; World Health Organization; aerodynamics; air; air pollution; air quality; compliance; guidelines; health promotion; health services; hospitals; human health; mortality; oils; relative risk; socioeconomics; traffic; France
Abstract:
... Fine particles i.e., with an aerodynamic diameter lower than 2.5 μm (PM₂.₅) have potentially the most significant effects on human health compared to other air pollutants. The main objectives of this study were to i) investigate the temporal variations of ambient PM₂.₅ in Marseille (Southern France), where air pollution is again a major public health issue, and ii) estimate their short-term health ...
DOI:
10.1016/j.chemosphere.2021.130502

82. A National-Scale 1-km Resolution PM2.5 Estimation Model over Japan Using MAIAC AOD and a Two-Stage Random Forest Model

Author:
Chau-Ren Jung; Wei-Ting Chen; Shoji F. Nakayama
Source:
Remote Sensing 2021 v.13 no.18 pp. -
ISSN:
2072-4292
Subject:
Japan; aerodynamics; aerosols; algorithms; governmental programs and projects; land use; model validation; models; monsoon season; particulates; population density; relative humidity; satellites; temperature; topography; wind
Abstract:
... Satellite-based models for estimating concentrations of particulate matter with an aerodynamic diameter less than 2.5 μm (PM₂.₅) have seldom been developed in islands with complex topography over the monsoon area, where the transport of PM₂.₅ is influenced by both the synoptic-scale winds and local-scale circulations compared with the continental regions. We validated Multi-Angle Implementation of ...
DOI:
10.3390/rs13183657

83. A North American dust emission climatology (2001–2020) calibrated to dust point sources from satellite observations

Author:
Mark Hennen; Adrian Chappell; Brandon L. Edwards; Akasha M. Faist; Tarek Kandakji; Matthew C. Baddock; Brandi Wheeler; Gayle Tyree; Ronald Treminio; Nicholas P. Webb
Source:
Aeolian research 2022 v.54 pp. 100766
ISSN:
1875-9637
Subject:
aerodynamics; aerosols; calibration; climate; climatology; dust; dust emissions; ecosystems; friction; land management; research; risk; roughness; satellites; vegetation cover; wind speed; Great Plains region; North America
Abstract:
... Measurements of atmospheric dust have long influenced our understanding of dust sources and dust model calibration. However, assessing dust emission magnitude and frequency may reveal different dust source dynamics and is critical for informing land management. Here we use MODIS (500 m) albedo-based daily wind friction estimates to produce a new dust emission climatology of North America (2001–202 ...
DOI:
10.1016/j.aeolia.2021.100766

84. A comprehensive analysis of blade tip for vertical axis wind turbine: Aerodynamics and the tip loss effect

Author:
Weipao Miao; Qingsong Liu; Zifei Xu; Minnan Yue; Chun Li; Wanfu Zhang
Source:
Energy conversion and management 2022 v.253 pp. 115140
ISSN:
0196-8904
Subject:
administrative management; aerodynamics; energy conversion; torque; wind; wind turbines
Abstract:
... Vertical axis wind turbines are receiving renewed attention due to the challenges faced by horizontal axis wind turbines in recent years. To achieve commercial applications, a key aspect is to improve the relatively low power coefficient of vertical axis wind turbines. Among several factors that affects output efficiency, the three-dimensional tip loss effect is essential because each vertical axi ...
DOI:
10.1016/j.enconman.2021.115140

85. A correlational study on size differentiated aerosols on monsoonal and pre-monsoonal cloud properties over the Indo Gangetic Basin

Author:
Sandhya Jose; Amit Kumar Mishra; Sachchidanand Singh
Source:
Atmospheric research 2021 v.262 pp. 105796
ISSN:
0169-8095
Subject:
aerodynamics; aerosols; air; basins; data collection; governmental programs and projects; liquids; meteorology; monsoon season; particle size; research; satellites; statistics; wind
Abstract:
... Particle size is a critical parameter in deciding the cloud condensation nuclei activation efficiency and hence largely influential in the cloud formation and dynamics. Here we study the size differentiated influence of aerosol optical depth (AOD) on cloud properties for the densely polluted Indo-Gangetic Basin (IGB) for a period of 2000–2017 using satellite observations. Terra on board MISR deriv ...
DOI:
10.1016/j.atmosres.2021.105796

86. A novel actuator line-immersed boundary (AL-IB) hybrid approach for wake characteristics prediction of a horizontal-axis wind turbine

Author:
Renwei Ji; Ke Sun; Jianhua Zhang; Renqing Zhu; Shuqi Wang
Source:
Energy conversion and management 2022 v.253 pp. 115193
ISSN:
0196-8904
Subject:
administrative management; aerodynamics; energy conversion; equations; kinetic energy; prediction; turbulent flow; wind farms; wind turbines
Abstract:
... The core idea of the actuator line (AL) model is to simplify the horizontal-axis wind turbine (HAWT) into a line with force distributed along the radial direction. The body force on the AL is employed to simulate the effect of the HAWT on the flow field, and the Navier-Stokes (N-S) equation is solved to obtain the aerodynamic and wake characteristics of the HAWT. Recently, the AL model has been co ...
DOI:
10.1016/j.enconman.2021.115193

87. A novel dynamic stall model based on Theodorsen theory and its application

Author:
Zhiguo Li; Zhiying Gao; Yongyan Chen; Liru Zhang; Jianwen Wang
Source:
Renewable energy 2022 v.193 pp. 344-356
ISSN:
0960-1481
Subject:
aerodynamics; computer software; models; prediction; wind turbines
Abstract:
... The unsteady aerodynamic characteristics and serious time-lag of wind turbine blades due to long time of dynamic stall make the actual measured power of rotor seriously deviate from its static prediction value. Therefore, dynamic stall model is becoming more and more significant for the Megawatt wind turbine with larger size and flexibility. In this paper, a novel dynamic stall model accounting fo ...
DOI:
10.1016/j.renene.2022.04.128

88. A novel linearization approach of chord and twist angle distribution for 10 kW horizontal axis wind turbine

Author:
Ali Alkhabbaz; Ho-Seong Yang; A.H Samitha Weerakoon; Young-Ho Lee
Source:
Renewable energy 2021 v.178 pp. 1398-1420
ISSN:
0960-1481
Subject:
Weibull statistics; aerodynamics; energy; torque; wind speed; wind turbines
Abstract:
... In the present work, the aerodynamic design of a 10 kW horizontal axis wind turbine rotor is performed using both ideal and actual rotor theories. The obtained nonlinear blade profile is optimized in order to enhance the aerodynamic performance and to ease the fabricating complexity. A unique linearization approach is employed to linearize the chord and twist distribution by dividing the congruent ...
DOI:
10.1016/j.renene.2021.06.077

89. A respirable HPV-L2 dry-powder vaccine with GLA as amphiphilic lubricant and immune-adjuvant

Author:
Irene Rossi; Gloria Spagnoli; Francesca Buttini; Fabio Sonvico; Fabio Stellari; Davide Cavazzini; Quigxin Chen; Martin Müller; Angelo Bolchi; Simone Ottonello; Ruggero Bettini
Source:
Journal of controlled release 2021 v.340 pp. 209-220
ISSN:
0168-3659
Subject:
Papillomaviridae; Pyrococcus; aerodynamics; coat proteins; cold chain; endotoxins; epitopes; humans; immune response; lipid A; lubricants; lungs; peptides; spray drying; thioredoxins; vaccination; vaccines
Abstract:
... Vaccines not requiring cold-chain storage/distribution and suitable for needle-free delivery are urgently needed. Pulmonary administration is one of the most promising non-parenteral routes for vaccine delivery. Through a multi-component excipient and spray-drying approach, we engineered highly respirable dry-powder vaccine particles containing a three-fold repeated peptide epitope derived from hu ...
DOI:
10.1016/j.jconrel.2021.11.002

90. A study of drag reduction with textile roughness on a cyclist model

Author:
X. Y. Hsu; Jiun-Jih Miau; T. H. Ku; J. J. Chen; W. C. Yuan; Y. H. Lai; Y. R. Chen; Y. J. Chen; C. H. Tseng; C. H. Chen; S. S. Jan; Y. S. Ciou; Y. Chen; C. W. Chiu
Source:
The journal of the Textile Institute 2022 v.113 no.6 pp. 1206-1230
ISSN:
1754-2340
Subject:
Reynolds number; aerodynamics; bicycling; drag coefficient; fabrics; models; roughness; sports; wind tunnels
Abstract:
... Efforts were made to examine the effect of textile roughness for the reduction of aerodynamic drag experienced on a cyclist model. First of all, flow visualization experiments were conducted in a water channel with a 1/5 scale cyclist model to identify the flow separation lines on the contoured surface. Subsequently, based on the information learned, the idea of delaying flow separation on the mod ...
DOI:
10.1080/00405000.2021.1950978

91. A three-dimensional dynamic mode decomposition analysis of wind farm flow aerodynamics

Author:
Xuan Dai; Da Xu; Mengqi Zhang; Richard J.A.M. Stevens
Source:
Renewable energy 2022 v.191 pp. 608-624
ISSN:
0960-1481
Subject:
aerodynamics; hydrodynamics; wind; wind farms
Abstract:
... High-fidelity large-eddy simulations are suitable to obtain insight into the complex flow dynamics in extended wind farms. In order to better understand these flow dynamics, we use dynamic mode decomposition (DMD) to analyze and reconstruct the flow field in large-scale numerically simulated wind farms by large-eddy simulations (LES). Different wind farm layouts are considered, and we find that a ...
DOI:
10.1016/j.renene.2022.03.160

92. A two-way coupling method for the study of aeroelastic effects in large wind turbines

Author:
Giacomo Della Posta; Stefano Leonardi; Matteo Bernardini
Source:
Renewable energy 2022 v.190 pp. 971-992
ISSN:
0960-1481
Subject:
aerodynamics; algorithms; deformation; power generation; vibration; wind; wind turbines
Abstract:
... The relevant size of state-of-the-art wind turbines suggests a significant Fluid-Structure Interaction. Given the difficulties to measure the phenomena occurring, researchers advocate high-fidelity numerical models exploiting Computational Fluid and Structural Dynamics. This work presents a novel aeroelastic model for wind turbines combining our Large-Eddy Simulation fluid solver with a modal beam ...
DOI:
10.1016/j.renene.2022.03.158

93. A unified empirical modeling approach for particulate matter and NO2 in a coastal city in China

Author:
Jia Xu; Zhenchun Yang; Bin Han; Wen Yang; Yusen Duan; Qingyan Fu; Zhipeng Bai
Source:
Chemosphere 2022 v.299 pp. 134384
ISSN:
0045-6535
Subject:
acute exposure; aerodynamics; air; air pollutants; air pollution; geostatistics; kriging; land use; nitrogen dioxide; particulates; prediction; China
Abstract:
... Modeling air pollutants on a fine spatiotemporal scale is necessary for health studies that focus on critical short-term exposure windows. A unified empirical modeling approach is useful for health studies; however, it is unclear whether this approach can be used in a coastal city for air pollutants driven by local emissions and regional meteorological factors. An advanced empirical modeling appro ...
DOI:
10.1016/j.chemosphere.2022.134384

94. Advancement of an analytical double-Gaussian full wind turbine wake model

Author:
Aidan Keane
Source:
Renewable energy 2021 v.171 pp. 687-708
ISSN:
0960-1481
Subject:
aerodynamics; lidar; models; momentum; wind turbines
Abstract:
... A recently proposed analytical wake model for a horizontal axis utility scale wind turbine is revisited, and revised and improved. The model is based upon conservation of momentum in the context of actuator disc theory, and the assumption of a distribution of the double-Gaussian type for the velocity deficit in the wake. The model is developed and improved and reveals characteristics of the wind t ...
DOI:
10.1016/j.renene.2021.02.078

95. Aerodynamic Performance of Horizontal Axis Wind Turbine with Application of Dolphin Head-shape and Lever Movement of Skeleton Bionic Airfoils

Author:
Shengxian Huang; Huihe Qiu; Ying Wang
Source:
Energy conversion and management 2022 pp. 115803
ISSN:
0196-8904
Subject:
administrative management; aerodynamics; dolphins; energy efficiency; torque; wind power; wind turbines
Abstract:
... In order to continuously develop the special airfoil for wind turbine and further improve the energy efficiency of wind turbine, based on the bionic airfoil Dol-Rot 24° that was proposed by the streamline contour of the Phocoenoides Dalli, another novel bionic airfoil is constructed combined with the lever movement shape of the dolphin skeleton, and the airfoil is named Dol-Rot 24°-2. For the cros ...
DOI:
10.1016/j.enconman.2022.115803

96. Aerodynamic analysis of hospital ventilation according to seasonal variations. A simulation approach to prevent airborne viral transmission pathway during Covid-19 pandemic

Author:
Marc Beaussier; Emmanuel Vanoli; Frédéric Zadegan; Herve Peray; Elodie Bezian; Jonathan Jilesen; Géraldine Gandveau; Jean-Michel Gayraud
Source:
Environment international 2022 v.158 pp. 106872
ISSN:
0160-4120
Subject:
COVID-19 infection; Severe acute respiratory syndrome coronavirus 2; aerodynamics; aerosols; air flow; air pollution; air transportation; conception; cough; health services; hospitals; markets; risk; risk assessment; solar radiation; summer; temperature; virus transmission; water vapor
Abstract:
... During the Covid-19 pandemic, location of the SARS-CoV-2 infected patients inside the hospital is a major issue to prevent viral cross-transmission. The objective of this study was to evaluate the risk of contamination through aerosol by using a global approach of the multiple environmental parameters to simulate, including seasonal context. A computational fluid dynamic (CFD) simulation based on ...
DOI:
10.1016/j.envint.2021.106872

97. Aerodynamic design and experimental validation of high pressure ratio partial admission axial impulse turbines for unmanned underwater vehicles

Author:
Kan Qin; Hanwei Wang; Jianhui Qi; Junliang Sun; Kai Luo
Source:
Energy 2022 v.239 pp. 122242
ISSN:
0360-5442
Subject:
aerodynamics; case studies; energy; mass flow; prediction
Abstract:
... High pressure ratio partial admission axial impulse turbines are typically employed for underwater vehicles due to small mass flow rate and machining constraints. However, little work has been focused on the generic design methodology for high pressure ratio partial admission axial impulse turbines. The experimental results and empirical correlations are mostly established upon low pressure ratio ...
DOI:
10.1016/j.energy.2021.122242

98. Aerodynamic optimization of the configuration of a pair of vertical axis wind turbines

Author:
Mahsa Hassanpour; Leila N. Azadani
Source:
Energy conversion and management 2021 v.238 pp. 114069
ISSN:
0196-8904
Subject:
administrative management; aerodynamics; algorithms; energy conversion; power generation; wind; wind turbines
Abstract:
... This study optimized the layout of a pair of Darrieus vertical axis wind turbines through three-dimensional computational fluid dynamics (CFD) simulations. Three design parameters including the horizontal distance between the axes of two wind turbines (S), the vertical distance between the mid-heights of two wind turbines (h), and the orientation of two wind turbines with respect to the incoming w ...
DOI:
10.1016/j.enconman.2021.114069

99. Aerodynamic performance assessment of φ-type vertical axis wind turbine under pitch motion

Author:
Jie Su; Yu Li; Yaoran Chen; Zhaolong Han; Dai Zhou; Yongsheng Zhao; Yan Bao
Source:
Energy 2021 v.225 pp. 120202
ISSN:
0360-5442
Subject:
aerodynamics; energy; mathematical models; torque; turbulent flow; wind power; wind turbines
Abstract:
... The floating vertical axis wind turbine (VAWT) is considered as a competitive device in the utilization of offshore wind energy. However, the platform pitch motion would affect its aerodynamic behavior. In this paper, the aerodynamic performance of a floating φ-type VAWT under pitch motion is investigated by using the Improved Delayed Detached Eddy Simulation SST k−ω turbulence model. After verify ...
DOI:
10.1016/j.energy.2021.120202

100. Aerodynamic performance improvement analysis of Savonius Vertical Axis Wind Turbine utilizing plasma excitation flow control

Author:
Wen Xu; Cheng-cheng Li; Sheng-xian Huang; Ying Wang
Source:
Energy 2022 v.239 pp. 122133
ISSN:
0360-5442
Subject:
aerodynamics; electric field; electric potential difference; manufacturing; wind speed; wind turbines
Abstract:
... Drag type Savonius Vertical Axis Wind Turbine (VAWT) has the advantages of the low total cost, simple manufacture and maintenance. Although the efficiency is low, it is suitable for residential areas with low wind speed. This article intends to use flow control methods to improve the efficiency of Savonius VAWT. Plasma excitation flow control is a relatively new type of active flow control technol ...
DOI:
10.1016/j.energy.2021.122133