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1. Cold thermal energy storage for milk chilling: A numerical and experimental study

Author:
Ravi Prakash; Menon Rekha Ravindra
Source:
Journal of food engineering 2023 v.337 pp. 111223
ISSN:
0260-8774
Subject:
fluid mechanics,   etc   ; cold; cold chain; energy efficiency; energy transfer; milk; milk production; models; temperature; thermal energy;     Show all 10 Subjects
Abstract:
... One of the main challenges in small holding dairy production systems is the commencement of cold-chain from the point of milk production. Such systems often rely on pooled milk in a supply chain, with the chilling operations being initiated once substantial quantities of milk (>500 L) are collected. Hence, there is a need to develop an energy efficient and passive thermal storage device for chilli ...
DOI:
10.1016/j.jfoodeng.2022.111223

2. An investigation of the pressure dip phenomenon within conical sandpiles using CFD-DEM

Author:
Huabin Wang; Yu Zhou; Bo Zhou; Wenbo Zheng
Source:
Powder technology 2022 v.398 pp. 117152
ISSN:
0032-5910
Subject:
fluid mechanics,   etc   ; fabrics; technology;     Show all 3 Subjects
Abstract:
... Although the pressure dip in conical sandpiles has been studied for several decades, this counterintuitive phenomenon is still not fully understood due to the intrinsic complexity of granular materials. This paper reports a series of combined computational fluid dynamics and discrete element method (CFD-DEM) simulations of the formation process of conical sandpiles. Samples with spherical or reali ...
DOI:
10.1016/j.powtec.2022.117152

3. Digital models in biotechnology: Towards multi-scale integration and implementation

Author:
Fabian S.F. Hartmann; Isuru A. Udugama; Gerd M. Seibold; Hirokazu Sugiyama; Krist V. Gernaey
Source:
Biotechnology advances 2022 v.60 pp. 108015
ISSN:
0734-9750
Subject:
fluid mechanics,   etc   ; biotechnology; industry;     Show all 3 Subjects
Abstract:
... Industrial biotechnology encompasses a large area of multi-scale and multi-disciplinary research activities. With the recent megatrend of digitalization sweeping across all industries, there is an increased focus in the biotechnology industry on developing, integrating and applying digital models to improve all aspects of industrial biotechnology. Given the rapid development of this field, we syst ...
DOI:
10.1016/j.biotechadv.2022.108015

4. Discharge rate characterization for submerged grains flowing through a hopper using DEM-LBM simulations

Author:
Jianhua Fan; Li-Hua Luu; Pierre Philippe; Gildas Noury
Source:
Powder technology 2022 v.404 pp. 117421
ISSN:
0032-5910
Subject:
fluid mechanics,   etc   ; technology; viscosity;     Show all 3 Subjects
Abstract:
... Submerged granular flows through an orifice were investigated numerically in the context of sinkhole occurrences during a flood due to the presence of underground conduits. To account for fluid-solid interaction at the pore-scale, we use a numerical modelling that combines the Discrete Element Method (DEM) for the solid particles with the Lattice Boltzmann Method (LBM) for the fluid dynamics. The ...
DOI:
10.1016/j.powtec.2022.117421

5. Energy loss of radial inflow turbine for organic Rankine cycle using mixture based on entropy production method

Author:
Zhiqi Wang; Baoqi Xie; Xiaoxia Xia; Huya Yang; Qingsong Zuo; Zhipeng Liu
Source:
Energy 2022 v.245 pp. 123312
ISSN:
0360-5442
Subject:
fluid mechanics,   etc   ; energy; entropy;     Show all 3 Subjects
Abstract:
... The radial inflow turbine is the core component of the organic Rankine cycle(ORC) system. Based on the internal flow field of the turbine analyzed by computational fluid dynamics (CFD), the energy dissipation of a radial inflow turbine with variable guide vane is determined by the entropy production analysis method. In the presented work, the mixture of R245fa/R134a is selected as the working flui ...
DOI:
10.1016/j.energy.2022.123312

6. Optimization and Experiment of a Disturbance-Assisted Seed Filling High-Speed Vacuum Seed-Metering Device Based on DEM-CFD

Author:
Rui Liu; Zhongjun Liu; Jiale Zhao; Qi Lu; Lijing Liu; Yinghang Li
Source:
Agriculture (Basel) 2022 v.12 no.9 pp. -
ISSN:
2077-0472
Subject:
fluid mechanics,   etc   ; agriculture; sowing;     Show all 3 Subjects
Abstract:
... In disturbance-assisted seed filling vacuum seed-metering devices, the suction hole causes difficulty in quickly and stably sucking seeds when used for high-speed seeding and the large working negative pressure demand is used. To address this difficulty, this study’s authors designed a seed disk hole with a variable cross-section structure, and the groove depth, which has the function of assisting ...
DOI:
10.3390/agriculture12091304

7. Analysis of the Flow Energy Loss and Q-H Stability in Reversible Pump Turbine as Pump with Different Guide Vane Opening Angles

Author:
Wei Yan; Di Zhu; Ran Tao; Zhengwei Wang
Source:
Water 2022 v.14 no.16 pp. -
ISSN:
2073-4441
Subject:
fluid mechanics,   etc   ; energy; water;     Show all 3 Subjects
Abstract:
... The internal flow problem of a reversible pump turbine restricts its safe and stable operation. Among them, the influence of the guide vane on the internal flow field is very crucial. The flow–head relationship is of great significance in the performance stability of the unit. In this study, the performance and flow field characteristics under different flow rates were analyzed for different guide ...
DOI:
10.3390/w14162526

8. CFD-DEM evaluation of screen types for sand control applications

Author:
Noor Ilyana Ismail; Shibo Kuang; Yechen Tang; Aibing Yu
Source:
Powder technology 2022 v.404 pp. 117496
ISSN:
0032-5910
Subject:
fluid mechanics,   etc   ; sand; technology;     Show all 3 Subjects
Abstract:
... Selecting a suitable sand screen type and size has been a challenge. This paper presents a comprehensive evaluation of premium square mesh screens (SMS), wire-wrapped screens (WWS), and modified wire-wrapped screens with converging slots (CSS). This is done by the combined approach of computational fluid dynamics (CFD) and discrete element method (DEM). The evaluation considers the sand production ...
DOI:
10.1016/j.powtec.2022.117496

9. Behavior of maize particles on the bionic sieve designed based on the earthworm's contour

Author:
Lijun Wang; Yihang Li; Housheng Wang; Bo Wang; Zhao Ma
Source:
Powder technology 2022 v.403 pp. 117399
ISSN:
0032-5910
Subject:
fluid mechanics,   etc   ; corn; earthworms; technology;     Show all 4 Subjects
Abstract:
... To improve the performance of cleaning device under a large feeding mass of maize mixture, a novel stagger-wave bionic sieve was designed based on the earthworm's contour to disturb maize particles. CFD-DEM (Computational Fluid Dynamics and Discrete Element Method) was used to simulate the behavior of particles on the bionic sieve. The results indicated that the motion of particles would be more d ...
DOI:
10.1016/j.powtec.2022.117399

10. Effects of different characteristics of the dilute liquid-solid flow on the erosion in a 90° bend

Author:
Ruijie Zhao; Youlong Zhao; Qiaorui Si; Xiongfa Gao
Source:
Powder technology 2022 v.398 pp. 117043
ISSN:
0032-5910
Subject:
fluid mechanics,   etc   ; mathematical models; technology;     Show all 3 Subjects
Abstract:
... A numerical model with a home-made interface code combining Computational Fluid Dynamics (CFD) and Discrete Element Method (DEM) is built to simulate the erosion process in a 90° bend for transporting dilute liquid-solid flow. Different characteristics of flow and particle are defined in the code for analyzing the corresponding effects on the bend erosion. The simulated results indicate the bend e ...
DOI:
10.1016/j.powtec.2021.117043

11. A review of recent development for the CFD-DEM investigations of non-spherical particles

Author:
Huaqing Ma; Lianyong Zhou; Zihan Liu; Mengyao Chen; Xiuhao Xia; Yongzhi Zhao
Source:
Powder technology 2022 pp. 117972
ISSN:
0032-5910
Subject:
fluid mechanics,   etc   ; mathematical models; technology;     Show all 3 Subjects
Abstract:
... The coupling between fluid and granular materials is commonly encountered in nature and engineering practice. Moreover, the shape of granular materials in practical applications is normally non-spherical. Therefore, investigating the particle-fluid systems containing non-spherical particles for a deeper understanding of their underlying mechanisms and then for improving the performance of the rela ...
DOI:
10.1016/j.powtec.2022.117972

12. A review of slug tests analysis on South African aquifers in potential yield and transmissivity estimations

Author:
R. Lubbe; S.S. de Lange; J.J.P. Vivier
Source:
Journal of hydrology 2022 v.40 pp. 101008
ISSN:
2214-5818
Subject:
fluid mechanics,   etc   ; aquifers; South Africa;     Show all 3 Subjects
Abstract:
... This research paper focuses on the application of slug test on South African fractured rock aquifers and the applicability of the test to provide potential aquifer hydraulics. The region of the study was Petrusburg which is situated in the Free State Province, South Africa. The aim of the study was to develop a methodology to relate slug tests to a potential yield estimation, therefore investigati ...
DOI:
10.1016/j.ejrh.2022.101008

13. Numerical study of particle separation with standing surface acoustic waves (SSAW)

Author:
You Wu; Wenjing Yang; Fanhui Zhu; Peijin Liu; Yan Ba
Source:
Powder technology 2022 v.395 pp. 103-110
ISSN:
0032-5910
Subject:
fluid mechanics,   etc   ; mathematical models; technology;     Show all 3 Subjects
Abstract:
... The particle manipulation technology based on standing surface acoustic waves (SSAW) has been widely used with high efficiency and low consumption. However, it is difficult to study particle motion at the microscopic scale with experimental methods and conventional continuous methods. In this paper, computational fluid dynamics (CFD) and the discrete element method (DEM) are used to describe the f ...
DOI:
10.1016/j.powtec.2021.09.034

14. Wave attenuation by multiple slotted barriers with a zig-zag arrangement -A physical and numerical approach

Author:
V. Kumaran; S. Neelamani; K.G. Vijay; N. Al-Anjari; A. Al-Ragum
Source:
Journal of hydro-environment research 2022 v.41 pp. 25-37
ISSN:
1570-6443
Subject:
fluid mechanics,   etc   ; gravity; porosity; research;     Show all 4 Subjects
Abstract:
... In the present study, scattering of surface gravity waves by multiple slotted vertical barriers arranged in a zig-zag manner is analyzed by employing Computational Fluid Dynamics (CFD) and validated with physical model tests. The porosity of the vertical slotted barrier is varied from 10% to 40%, and the number of slotted barriers varied from 1 to 6. The results from CFD correlate well with the la ...
DOI:
10.1016/j.jher.2022.02.001

15. Collinear Interaction of Waves and Current in the Presence of Ripple in the U-Tube

Author:
Alessia Ruggeri; Carla Faraci
Source:
Water 2022 v.14 no.3 pp. -
ISSN:
2073-4441
Subject:
fluid mechanics,   etc   ; sediment transport; sediments; water;     Show all 4 Subjects
Abstract:
... Ripple formation and evolution as well as vortex separation along the bedform profile strongly influence surface waves and sediment transport. These features were investigated in a U-Tube at the Hydraulics Laboratory of the University of Messina. During the experimental campaign, tests in the presence of wave only, current only, and collinear wave plus current in wave dominated regime were carried ...
DOI:
10.3390/w14030470

16. Numerical study of fuel-NO formation and reduction in a reversed flow MILD combustion furnace firing ammonia-doped methane

Author:
Qiangxiang Wang; Mengqian Xie; Yaojie Tu; Hao Liu; Weijie Li
Source:
Energy 2022 v.252 pp. 124111
ISSN:
0360-5442
Subject:
fluid mechanics,   etc   ; combustion; energy; furnaces; methane;     Show all 5 Subjects
Abstract:
... Moderate or intense low-oxygen dilution (MILD) combustion is well-known for its high potential of reducing thermal-NO formation during combustion, but its capability of mitigating fuel-NO formation is still elusive. To provide new insights into this aspect, this paper numerically studies the fuel-NO formation characteristics under CH₄/NH₃ MILD combustion in a lab-scale reversed flow furnace by com ...
DOI:
10.1016/j.energy.2022.124111

17. Assessment of Spatiotemporal Migration of River Ganga from Buxar to Azamabad Using Remote Sensing and GIS Technique

Author:
Ratnesh Kumar; Ramakar Jha
Source:
Journal of the Indian Society of Remote Sensing 2022 v.50 no.10 pp. 1945-1958
ISSN:
0255-660X
Subject:
fluid mechanics,   etc   ; Landsat; floodplains; rivers; India;     Show all 5 Subjects
Abstract:
... The dynamics associated with the morphological changes of the Ganga River being the largest river in India is yet to be understood. Population living near the floodplain gets crucially affected by migrating channels. Spatiotemporal relocation of Ganga River from Buxar to Azamabad over a period of 45 years (1975–2020) was measured using Landsat images. Study area was divided into 7 reaches (A, B, C ...
DOI:
10.1007/s12524-022-01583-y

18. Dataset of numerically-generated interfaces of Newtonian jets in CIJ regime

Author:
Guillaume Maîtrejean; Adeline Samson; Denis C.D. Roux
Source:
Data in Brief 2022 v.42 pp. 108215
ISSN:
2352-3409
Subject:
fluid mechanics,   etc   ; computer software; data collection;     Show all 3 Subjects
Abstract:
... The so-called Rayleigh-Plateau instability of fluid jets has been widely studied and is extensively used in the Continuous InkJet (CIJ) printing process. The present dataset contains the numerically-generated interfaces of Newtonian fluids jets in CIJ jetting conditions for low to moderately high stimulation amplitudes. We used Basilisk, an open-source Computational Fluid Dynamics (CFD) software s ...
DOI:
10.1016/j.dib.2022.108215

19. Effect of inlet periodic velocity on the performance of standard cyclone separators

Author:
Lianjun Chen; Hui Ma; Zhenjiao Sun; Guanguo Ma; Pengcheng Li; Chunkui Li; Xiaochun Cong
Source:
Powder technology 2022 v.402 pp. 117347
ISSN:
0032-5910
Subject:
fluid mechanics,   etc   ; air; concrete; hysteresis; models;     Show all 5 Subjects
Abstract:
... In some engineering applications, the inlet velocity of cyclones for gas-solid separation varies periodically with time. This investigation is based on a push chain concrete spraying machine, measures and trigonometrically characterises the inlet periodic air velocity. Four standard cyclones and a design cyclone have been simulated to investigate performance under inlet periodic velocity. The simu ...
DOI:
10.1016/j.powtec.2022.117347

20. Exploring the key facets of leakage dynamics in water distribution networks: Experimental verification, hydraulic modeling, and sensitivity analysis

Author:
Dina Zaman; Ashok Kumar Gupta; Venkatesh Uddameri; Manoj Kumar Tiwari; Dhrubajyoti Sen
Source:
Journal of cleaner production 2022 v.362 pp. 132236
ISSN:
0959-6526
Subject:
fluid mechanics,   etc   ; assets; prototypes; water distribution;     Show all 4 Subjects
Abstract:
... Hydraulic solvers are extensively used for the real-time operational analysis and asset management of water distribution networks. However, the influence of leakage on network hydraulics is still not fully understood, and limited experimental verification concerning leakage modeling and calibration efficacy of hydraulic solvers is presently available. To address these limitations, this research de ...
DOI:
10.1016/j.jclepro.2022.132236