Numerical Study on the Effect of Swept Blade on the Aerodynamic Performance of Wind Turbine at High Tip Speed Ratio

The Science of Making Torque from Wind

Zuo, H.M.^1 ; Liu, C.^1 ; Yang, H.^1 ; Wang, F.^1

School of Hydraulic, Energy and Power Engineering, Yangzhou University, Yangzhou, China^1

关键词: Aero-dynamic performance;    CFD (computational fluid dynamics);    Computer engineering;    Current situation;    Multi disciplines;    Optimization software;    Power coefficients;    Tip speed ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/10/102010/pdf
DOI  :  10.1088/1742-6596/753/10/102010

来源: IOP

【 摘 要 】

The current situation is that the development of high speed wind energy saturates gradually, therefore, it is highly necessary to develop low speed wind energy. This paper, based on a specific straight blade and by using Isight, a kind of multidiscipline optimization software, which integrates ICEM (Integrated Computer Engineering and Manufacturing) and CFD (Computational Fluid Dynamics) software, optimizes the blade stacking line (the centers of airfoil from blade root to tip) and acquires the optimization swept blade shape. It is found that power coefficient Cpof swept blade is 3.2% higher than that of straight blade at the tip speed ratio of 9.82, that the thrust of swept blade receives is obviously less than that of straight blade. Inflow angle of attack and steam line on the suction of the swept and straight blade are also made a comparison.