静止叶栅三维粘性数值模拟

应用Ｎ－ Ｓ方程压力修正算法和ｋ－ ε两方程湍流模型，对端弯叶片和基准（无端弯）叶片的平面叶栅进行了三维粘性数值模拟。在采用简单交错网格的情况下，通过对计算控制体通量的速度进行修正的方法解决了Ｎ－ Ｓ方程压力修法算中遇到的压力场和速度场呈锯齿状分布的问题。用实验测量值对本数值模拟方法的精度和可靠性进行了检验

A 3-D VISCOUS NUMERICAL SIMULATION FOR STATIC COMPRESSOR CASCADE

A 3-D viscous numerical simulation was completed for the plane cascade flow fields of end-bend and original blade with the helps of pressure-based method of N-S equations and a K-ε two equations model.In the case of using simple stagger grid,by the way of velocity modification for calculating flux of a control volume,the well-known problem of checkerboard distribution of pressure and velocity fields in the pressure-based method is well settled.The accuracy and reliability of this numerical simulation are verified with the experimental data.