Some implicit time-marching finite-difference solutions of time-averaged Navier-Stokes equations for two- dimensional compressible internal flows are presented.Five numerical examples including subsonic,transonic, sup...Some implicit time-marching finite-difference solutions of time-averaged Navier-Stokes equations for two- dimensional compressible internal flows are presented.Five numerical examples including subsonic,transonic, supersonic and hypersonic flow fields with steady and unsteady phenomena show validity and flexibility of the present calculation code.The TVD scheme suggested by Harten et al is used to improve the shock resolution, and an algebraic turbulence model suggested by Baldwin and Lomax is introduced to evaluate the viscous effect in the turbulent flows.It is found that the computational results show fairly good agreement with the experi- mental data.展开更多
This paper describes a new method which has been developed for the solution of direct and inverse problems of 3-D compressible flows in turbomachinery.Two types of streamfunctions are proposed in the paper and the str...This paper describes a new method which has been developed for the solution of direct and inverse problems of 3-D compressible flows in turbomachinery.Two types of streamfunctions are proposed in the paper and the streamfunction-coordinate system is applied in numerical computations.The algorithm is applied to stator blades and the results are compared with experimental data,It is shown that the comparisons are very satis- factory.展开更多
基金Project Supported by the National Natural Science Foundation of China
文摘Some implicit time-marching finite-difference solutions of time-averaged Navier-Stokes equations for two- dimensional compressible internal flows are presented.Five numerical examples including subsonic,transonic, supersonic and hypersonic flow fields with steady and unsteady phenomena show validity and flexibility of the present calculation code.The TVD scheme suggested by Harten et al is used to improve the shock resolution, and an algebraic turbulence model suggested by Baldwin and Lomax is introduced to evaluate the viscous effect in the turbulent flows.It is found that the computational results show fairly good agreement with the experi- mental data.
基金Project supported by the National Natural Science Fundation of China
文摘This paper describes a new method which has been developed for the solution of direct and inverse problems of 3-D compressible flows in turbomachinery.Two types of streamfunctions are proposed in the paper and the streamfunction-coordinate system is applied in numerical computations.The algorithm is applied to stator blades and the results are compared with experimental data,It is shown that the comparisons are very satis- factory.
