A study on stall-delay for horizontal axis wind turbine

被引：55

作者：

Hu, DM ^{[1
]}

Hua, OY ^{[1
]}

Du, ZH ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200030, Peoples R China

来源：

RENEWABLE ENERGY | 2006年 / 31卷 / 06期

基金：

中国国家自然科学基金;

关键词：

stall-delay; numerical simulation; flow field measurement; horizontal axis wind turbine;

D O I：

10.1016/j.renene.2005.05.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The study on the stall-delay phenomenon for horizontal axis wind turbine (HAWT) was carried out by employing the boundary layer analysis, the numerical simulation and the experimental measurement. The effects of rotation on blade boundary layers are investigated by solving the 3D integral boundary layer equations with assumed velocity profiles. It is shown that rotation has a generally beneficial effect in delaying separation compared with that under 2D stationary condition. Next, the detailed flow fields are simulated on the conditions of 2D stationary and 3D rotation by CFD code. The computation results show that rotation affects the pressure distribution on the surface of the foil, which can give rise to 3D stall-delay in stalled condition HAWT. Finally, the flow fields behind a model HAWT are measured with a hot-wire probe in the wind tunnel. The results show good agreement with those from 3D computation calculations, suggesting that the stall-delay should be taken into consideration, in order to accurately predict the loading and performance of a HAWT operating in stall. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：821 / 836

页数：16

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