湍流风竖轴风机气动性能预报

AERODYNAMIC PERFORMANCE PREDICTION OF VERTICAL AXIS WIND TURBINE UNDER NORMAL TURBULENCE MODEL

为提高流管模型在竖轴风机空气动力学性能预报中的准确性,在已有的单盘面多流管模型的基础上,针对叶片动态载荷预报问题加入了正常湍流风模型(NTM),进一步推广了流管模型的计算能力。算例结果表明:该修正模型可较好地预报正常湍流风模型下轮机瞬时气动载荷性能,适用于竖轴风机气动性能设计分析。

In order to improve the accuracy of stream-tube model on aerodynamic performance prediction of vertical axis wind turbine, the normal turbulence model was put into based on the single disk multiple tubes model, for predicting the instantaneous loads of the vertical axis wine turbine. The numerical results show the modified model could be fit for the aerodynamic performance design and prediction on loads in vertical axis wind turbine under normal wind turbulence model.