转捩点预测对风力机翼型气动性能分析的影响

INFLUENCE OF TRANSIRION LOCATION ON AERODYNAMIC ANALYSIS OF WIND TURBINE AIRFOIL

分别用带转捩模型的边界层耦合计算方法和基于RANS方程的通用CFD方法对风力机常用翼型S809进行了气动分析。通过自由转捩、强制转捩和全湍流模式的比较,着重阐述边界层转捩点预测对风力机翼型气动性能计算分析的影响。

The Aerodynamic analysis of the wind turbine airfoil at low Reynolds number is important for the airfoil research. The coupled method with boundary layer transition model and CFD method based on RANS were carried out to study the aerodynamic performance of the wind turbine airfoil S809. The comparison of free transition, forced transition and fully turbulent were performed to illuminate the influence of transition location on aerodynamic analysis of wind turbine airfoil.