Dynamic stall analysis of compound motion of wind turbine airfoil under yaw load

被引：0
作者：
Ji Z. [1 ]
Zhang J. [1 ,2 ]
Yin Y. [1 ]
Feng Y. [1 ]
Liu P. [1 ]
机构：
[1] School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan
[2] Shanxi Traffic Vocational and Technical College, Taiyuan
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 06期
关键词：
Aerodynamic stalling; Computational fluid dynamic; Edgewise; Flapwise; Wind turbine;
D O I：
10.19912/j.0254-0096.tynxb.2019-0367
中图分类号：
学科分类号：
摘要：
In order to further analyze the aerodynamic characteristics of the large wind turbine blades, the yaw load is equivalent to the pitching motion. Based on the k-ω SST turbulence model with transition correction. The effects of the oscillating at the same frequency but with different phase difference and different reduced frequency under the action of the compound motion of the pitch, flapwise and edgewise at Reynolds number of 106 on the aerodynamic performance of the NREL S809 airfoil were studied. The results show that the flapwise velocity near the dynamic stall angle has a great influence on the aerodynamic coefficient of the airfoil. The airfoil pitch can significantly increase or suppress the dynamic stall angle when it has different phase from the flapwise and edgewise motions. The change in the reduced frequency can greatly affect the aerodynamic performance of the compound motion in different phases and the dynamic load is more sensitive to the phase difference than that of the reduced frequency in the compound motion. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：377 / 384
页数：7
相关论文
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