Effects of Tip Vanes on Aerodynamic Performance of H-Type VAWT

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Dong, Zhiqiang^1

Shanghai Apollo Machinery Co. Ltd, Shanghai

201401, China^1

关键词: Aero-dynamic performance;    Blade Surface;    CFD numerical simulations;    Power augmentation;    Power coefficients;    S-type tip vanes;    Tip vortex;    Vertical axis wind turbines;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/4/042138/pdf
DOI  :  10.1088/1755-1315/170/4/042138

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to investigate the effect of the tip vanes on the aerodynamic performance of H-type vertical axis wind turbines (H-VAWTs), adopting the method of the CFD numerical simulation to analysis blade surface pressure distribution, tip vortex and power coefficient of H-VAWTs that are installed two different kinds of tip vanes on both ends of the blade and not installed. The result showed that the tip vanes can weaken the tip vortex, increase the blade surface pressure difference and improve the power coefficient of the H-VAWT. In addition, the power coefficient of the rotor with V type tip vane was greater than that of the rotor with S type tip vane. The maximum improvement achieved was a 37.5 percent increase in power coefficient with V type tip vane and a 33 percent increase in power coefficient with S type tip vane, the tip vanes made the power augmentation of the H-VAWT.