We discuss the structure of the shock wave solution for a system of Navier–Stokes equations, obtained as hydrodynamic limit of a BGK description of the dynamics of monoatomic gases at kinetic level. We investigate first the thickness of the transition region of the shock profile for a monoatomic gas, for varying Mach number and different physical options for the viscosity coefficient. The analysis is then extended to a binary gas mixture. Some numerical results for noble gases are presented and discussed.
On the shock thickness for a binary gas mixture / Bisi, M.; Groppi, M.; Martalò, Giorgio. - In: RICERCHE DI MATEMATICA. - ISSN 0035-5038. - 70(2021), pp. 251-266. [10.1007/s11587-020-00503-x]
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