Experimental and numerical investigation of a three-dimensional vertical-axis wind turbine with variable-pitch

被引：243

作者：

Elkhoury, M. ^{[1
]}

Kiwata, T. ^{[2
]}

Aoun, E. ^{[1
]}

机构：

[1] Lebanese Amer Univ, Mech Engn, Byblos, Lebanon

[2] Kanazawa Univ, Mech Engn, Kanazawa, Ishikawa 9201192, Japan

来源：

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS | 2015年 / 139卷

关键词：

Vertical-axis wind turbine; Large eddy simulation; Variable-pitch; Wind tunnel experiments; UNSTEADY WIND; AERODYNAMICS;

D O I：

10.1016/j.jweia.2015.01.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A combined experimental and numerical investigation is carried out to study the performance of a micro vertical-axis wind turbine (VAWT) with variable-pitch. Three-dimensional numerical simulations are essentially employed, for the VAWT involves a low aspect ratio (AR) three straight blades with struts. The performance of the VAWT is experimentally measured using a wind tunnel, while large eddy simulation (LES) with dynamic smagorinsky subgrid scale (SGS) model is employed to help understand the associated flow structure. The effects of wind speed, turbulence intensity, airfoil shape, and strut mechanism with and without variable-pitch on the performance of the turbine are carefully assessed, both experimentally and numerically. The accuracy of the SGS model in predicting the laminar-turbulent transition is also examined. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：111 / 123

页数：13

共 18 条

[1] Computational fluid dynamics (CFD) mesh independency techniques for a straight blade vertical axis wind turbine [J].