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KIAM Preprint  96, Moscow, 2018
Authors: Borisov V. E., Rykov Y. G.
An exact Riemann solver in the algorithms for multicomponent gas dynamics
Abstract:
This preprint deals with the elaboration of the algorithm for multicomponent gas flows simulations in the presence of strong shock waves. Standard finite volume Godunov-type scheme gives the effect of numerical pressure oscillations on contact discontinuity. In order to fix the situation the convenient modification double flux method is described and tested. The simplicity and robustness of the method render it as good candidate for the realization in multi-D algorithms.
Keywords:
multicomponent gas dynamics, Godunov scheme, Riemann problem, pressure oscillation, double flux method
Publication language: russian,  pages: 28
Research direction:
Mathematical problems and theory of numerical methods
Russian source text:
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About authors:
  • Borisov Vitaly Evgenyevich,  orcid.org/0000-0003-4448-7474KIAM RAS
  • Rykov Yuri Germanovich,  orcid.org/0000-0003-1695-6202KIAM RAS