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JOURNALS // Preprints of the Keldysh Institute of Applied Mathematics // Archive

Keldysh Institute preprints, 2020 048, 23 pp. (Mi ipmp2839)

Numerical solution of Baer-Nunziato model with discontinuous Galerkin method

M. V. Alekseev, E. B. Savenkov, F. N. Voronin


Abstract: The paper presents the discontinuous Galerkin method for solving the equations of the Baer-Nunziato model, that describes flows in multiphase media in the framework of completely non-equilibrium formulation. The algebraic completion of the solution up to the second order is used. The monotony of the numerical scheme is ensured by the use of the WENO-S geometric limiter. The results of one-dimensional and two-dimensional test calculations are presented. Lax-Friedrichs and Rusanov flows are used as numerical fluxes. Examples of numerical calculations of one-dimensional and two-dimensional problems are given.

Keywords: Baer–Nunziato model, multiphase flows, RKDG.

DOI: 10.20948/prepr-2020-48



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