An efficient algorithm for hypersonic viscous flows
- 3 Downloads
The CSCM-S algorithm proposed by Lombard et al. is a very attractive tool for solving multidimensional Euler and Navier-Stokes equations. However, it is not economical due to the use of global sweeps in the whole computational domain. In this paper we suggest a modified strategy, which combines a single-marching technique for supersonic dominated region with a multi-sweep procedure for pure subsonic and complex flowfield. The new algorithm may save significantly CPU time and is more suitable for engineering applications.
Key Wordsviscous flow CSCM algorithm single-marching technique multi-sweep procedure
Unable to display preview. Download preview PDF.
- [1L.Lombard C. K. et al., Universal single level implicit algorithm for gasdynamics, NASA CR-166531 (1984).Google Scholar
- Gao Zhi, Simplified Navier-Stokes equations and combined solution on non-viscons and boundary layer equations,ACTA Mechanica Sinica, 6 (1982).Google Scholar
- Yang J. Y. numerical solution of the two-dimensional Euler equations by second-order upwind difference schemes, AIAA paper 85-292 (1985).Google Scholar
- Newsome R. W. et al., An efficient iteration strategy for upwind/relaxation solutions to the thin-layer Navier-Stokes equations, AIAA paper 87-1113 (1987).Google Scholar
- Bardina J. et al., Two-dimensional and axisymmetric heat transfer results with the CSCM upwind implicit algorithm, AIAA paper 85-0923 (1985).Google Scholar
- Jiao L. Q. et al., Numerical calculation of hypersonic viscous flows over hemisphere-cones at angles of attack,ACTA Mechanica Sinica, 3 (1980), (in Chinese).Google Scholar
- Hou Tianxiang et al. Supersonic flows past blunt bodies using the time-dependent method. Aerospace Press, Beijing (1986). (in Chinese).Google Scholar