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You searched for: Publication year rev 7984-2016 Remove constraint Publication year rev: 7984-2016 Subject energy Remove constraint Subject: energy Subject aerodynamics Remove constraint Subject: aerodynamics Subject term aerodynamics Remove constraint Subject term: aerodynamics
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1. Numerical investigation into energy extraction of flapping airfoil with Gurney flaps

Author:
Y.H. Xie; W. Jiang; K. Lu; D. Zhang
Source:
Energy 2016 v.109 pp. 694-702
ISSN:
0360-5442
Subject:
Reynolds number; aerodynamics; energy; equations; extraction
Abstract:
... A new type of Gurney flap is applied for energy extraction enhancement of a flapping airfoil. Two-dimensional Navier-Stokes simulations at Re = 10⁴ are conducted to study the effect of Gurney flaps with various heights. The investigations are undertaken over a wide range of kinematic parameters (reduced frequency k, pitching amplitude θ0). Numerical results show that the application of a Gurney fl ...
DOI:
10.1016/j.energy.2016.05.039

2. Optimization of a thruster sections by Prandtl's theory

Author:
Abidi Essia; Hcini Cherif; Kamoun Badreddinne
Source:
Renewable energy 2016 v.87 pp. 863-868
ISSN:
0960-1481
Subject:
aerodynamics; energy; wind; wind power
Abstract:
... Wind power is now the world's fastest growing energy source. It is well known that energy production depends on the shape of the thruster (sail of yacht or a blade) and on the wind characteristics on a given site. The objective of this study is to maximize the performances of a thruster by optimizing the most important aerodynamic design parameters.One of the most important challenges in aerodynam ...
DOI:
10.1016/j.renene.2015.08.053

3. An empirical–heuristic optimization of the building-roof geometry for urban wind energy exploitation on high-rise buildings

Author:
Francisco Toja-Silva; Oscar Lopez-Garcia; Carlos Peralta; Jorge Navarro; Ignacio Cruz
Source:
Applied energy 2016 v.164 pp. 769-794
ISSN:
0306-2619
Subject:
aerodynamics; buildings; cities; energy; geometry; turbulent flow; urban areas; wind; wind power; wind turbines
Abstract:
... Urban wind energy exploitation is an important topic for smart sustainable cities. The present investigation is a step in this direction, considering the latest advances in building aerodynamics, identifying and analyzing the optimum building-roof shape for the urban wind energy exploitation. This investigation focusses in two aspects: the isolated building shape optimization and the analysis of t ...
DOI:
10.1016/j.apenergy.2015.11.095

4. Aerodynamics of wind turbine wakes in flat and complex terrains

Author:
B. Subramanian; N. Chokani; R.S. Abhari
Source:
Renewable energy 2016 v.85 pp. 454-463
ISSN:
0960-1481
Subject:
Reynolds number; aerodynamics; energy; friction; models; renewable energy sources; statistics; turbulent flow; wind turbines
Abstract:
... The wake evolution measured downstream of multi-megawatt wind turbines located in flat and complex terrains are described here. These high-resolution measurements at full-scale Reynolds number conditions are made with an instrumented drone that is equipped with a suite of sensors and detail the characteristics of the mean flow and turbulent kinetic energy in the evolving wake. Reynolds decompositi ...
DOI:
10.1016/j.renene.2015.06.060