Shocks and Discontinuities Treatment in Multi-species Flows Using a Riemann Solver

Abstract

The diversity of industrial configurations presenting a flow of mixtures of several species calls on researchers to develop a reliable, easily usable tool capable of treating this type of flow in the presence of an interface. The present work contributes to the numerical solution of multi-species equations in the presence of shocks and contact discontinuities. A shock capture-type method based on the separation of roe flux differences is associated with a two-parameter equation of state. The results presented here show that the model has the ability to correctly capture the present shocks and discontinuities and provide an accuracy compatible with the requirements zones of discontinuity existing in the flow.