中文摘要：

采用Realizable κ-ε紊流模型并结合SIMPLEC算法，对前缘复合角度α=30°，β=45°，α=90°，β=45°的动叶栅在不同旋转状速度下的气膜冷却效率进行计算。分析了不同转速、吹风比、叶片前缘射流角度对气膜冷却效率的影响。计算结果表明：旋转导致冷却射流向叶顶偏移，转速越高气膜冷却效率越低；高转速时叶盆区域有回流涡旋形成；高吹风比使得冷却射流在吸力面的贴壁性变差；比较两种前缘冷气喷射角度的计算结果可以看出，前缘冷却气流喷射角度较小时的气膜冷却效果较好。

英文摘要：

Film cooling effectiveness of rotating turbine blades with compound angle holes has been investigated by numerical simulation. Calculations of moving blades under different rotational speed conditions. The effect of rotational velocity, blowing rate and incidence angle of the cooling air jet at leading edge on film cooling have been analyzed. Calculation results show that rotation causes film cooling jet flow skew to blades tip. Cooling effect on the surface to drop the quicker the rotation the lower the cooling effect. In high speed reversed flow appeared in the bottom pressure surface, cooling jet bad in wall adherence characteristic on suction surface when in high blowing rate. There is the better film cooling effectiveness with the smaller jet angle of the leading edge.