关键词: 压气机;叶栅流;纳维尔－斯托克斯方程;湍流模型;有限体积法

Abstract: A finite volume numerical method for the solution of two dimensional Navier Stokes equation in general curvilinear coordinates was presented.One or several k ω turbulence models were used to simulate the turbulent flow effects.A non stagered grid system was employed and a specific scheme was presented to suppress the pressure oscillations.A new TVP high order convective differencing scheme was used to improve accuracy and stability in turbulent computations.This method was applied to the turbulent separated flow inside the cascades.The detailed results of computations from different turbulence models were given and the comparisons between numerical results and available experimental data were obtained

Key words: Air compressor;Cascade flow;Navier Stokes equation;Turbulence model;Finite volume method