Influence of vortex generators on dynamic stall of wind turbine airfoil segment

被引：0
|
作者：
Zhao Z. [1 ,2 ]
Meng L. [1 ]
Wang T. [3 ]
Su D. [1 ]
Wu H. [1 ]
Xu B. [1 ]
机构：
[1] College of Energy and Electric Engineering, Hohai University, Nanjing
[2] Key Laboratory of Wind Energy and Solar Energy Technology, Inner Mongolia University of Technology, Hohhot
[3] Jiangsu Key Laboratory of Hi-Tech Research For Wind Turbine Design, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2021年 / 42卷 / 02期
关键词：
Aerodynamic characteristics; Deep stall; Delayed detached-eddy simulation method; DU91-W2-250; Dynamic stall; Light stall; Numerical simulation; Vortex generator;
D O I：
10.11990/jheu.201908076
中图分类号：
学科分类号：
摘要：
To study the effect of vortex generators (VGs) on the aerodynamic characteristics and flow field of the airfoil during a dynamic stall, the wind turbine airfoil DU91-W2-250 with VGs is simulated using the delayed detached-eddy simulation approach. The numerical simulation is used to analyze the effect of VGs on the conversion process of deep and light stalls. The results show that VGs can inhibit dynamic stall by significantly increasing lift and decreasing drag, which is more obvious in the pitch-down stage of the airfoil segment. When affected by VGs, the lift in the pitch-down stage of the airfoil segment is lower than that of the pitch-up stage during a deep stall, whereas the opposite tendency occurs during a light stall. Copyright ©2021 Journal of Harbin Engineering University.
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页码：233 / 239
页数：6
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