Open AccessInvestigation of the properties of a quasi-gas-dynamic system of equations based on the solution of the Riemann problem for a mixture of gases
Author(s) -
Ismatolo Ramazanovich Khaytaliev,
Е. В. Шильников
Publication year - 2021
Publication title -
preprint/preprinty ipm im. m.v. keldyša
Language(s) - English
Resource type - Journals
eISSN - 2071-2901
pISSN - 2071-2898
DOI - 10.20948/prepr-2021-52
Subject(s) - riemann problem , discontinuity (linguistics) , transonic , riemann hypothesis , compressibility , gas dynamics , stability (learning theory) , compressible flow , mathematics , finite volume method , real gas , mechanics , physics , mathematical analysis , computer science , aerodynamics , machine learning
The accuracy and stability of an explicit numerical algorithm for modeling the flows of a mixture of compressible gases in the transonic regime are investigated by the example of solving the Riemann problem on the decay of a gas-dynamic discontinuity between different gases. The algorithm is constructed using the finite volume method based on the regularized gas dynamics equations for a mixture of gases. A method for suppressing nonphysical oscillations occurring behind the contact discontinuity is found.