后弯角变化对涡轮叶栅能量损失系数的影响

The Effect of the Different Backward Curved Angles on Energy Losses Coefficient in Turbine Cascade

使用FLUENT软件对某型跨音速涡轮叶栅的导叶进行了S1流面的粘性流动计算。分析了叶栅能量损失系数随不同后弯角的变化,得到了在该涡轮叶栅内对应最小能量损失的3个典型截面上的后弯角的范围。

The present paper computed the viscous flow of S1 flow surfaces in some transonic turbine vane cascade by using the computational software FLUENT. Analyzed the changing of energy losses coemcient in turbine cascade with different backward curved angles, and achieved the range of the backward curved angles corresponding of the minimum energy losses on three typical sections in the turbine cascade.