Volume 20, Issue 2 (4-2001)
2001, 20(2): 167-180 |
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A. Shadaram, H. Khaleghi and M.S. Sadeghipour. A Modified Flux Vector Splitting Scheme for Flow Analysis in Shock Wave Laminar Boundary Layer Interactions. Computational Methods in Engineering 2001; 20 (2) :167-180
URL: http://jcme.iut.ac.ir/article-1-235-en.html
URL: http://jcme.iut.ac.ir/article-1-235-en.html
Abstract: (4163 Views)
The present work introduces a modified scheme for the solution of compressible 2-D full Navier-Stokes equations, using Flux Vector Splitting method. As a result of this modification, numerical diffusion is reduced. The computer code which is developed based on this algorithm can be used easily and accurately to analyze complex flow fields with discontinuity in properties, in cases such as shock wave boundary layer interactions. This scheme combines advantages of both Advective Upstream Splitting (AUSM) and Low Diffusion Flux Vector Splitting (LDFVS) Methods. To increase accuracy and monotonicity, the conservative variables are extrapolated at the cell interfaces by using the MUSCL approach with limiter. This algorithm has been used to solve four sample problems. It has been shown that the numerical diffusion has been reduced and the results are in good agreement with published numerical and/or experimental data.
Keywords: Compressible Navier Stokes Equations, Flux Vector splitting, Advective upwind, Numerical diffusion
Keywords: Compressible Navier Stokes Equation, Flux Vector splitting, Advective upwind, Numerical diffusion
