摘要
应用有限元方法求解不可压粘性流动Ｎ－Ｓ耦合方程，将此方法用于驱动方腔和突扩管道内的层流分析，结果表明此方法具有良好的椭圆型性质，能预测分离流动．用该方法结合两层湍流代数模型，对压气机叶栅内不可压流动进行模拟分析，与实验结果的比较证明方法是有效的．
In the paper the finite element method to solve coupled Navier Stokes equations of incompressible fluid flow is presented. The method is used upon laminar flow of driven cavity and back step pipe. Results show that the solution has good elliptic feature to predict separated flow. Combining with two layer turbulence algebraic model,the method is developed to simulate incompressible flow within compressor cascades.Results are compared with existing experimental data to validate the effectiveness of the method.
