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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2020 Volume 60, Number 4, Pages 567–577 (Mi zvmmf11056)

Generalized solutions of the galilean invariant thermodynamically compatible conservation laws constructed using Godunov's ideas

M. Ya. Ivanov, V. K. Mamaev

Central Institute of Aviation Motors, Moscow, Russia

Abstract: The Galilean invariant thermodynamically compatible conservation laws that admit a class of generalized solutions is analyzed. The main feature of the generalized solutions considered in this paper is that they describe smooth solutions with the kinetic energy and total pressure loss, which accompany the dynamic process of heat supply. The principal properties of the generalized solutions analyzed in Godunov's works are the Galilean invariance and thermodynamic compatibilty of the original conservation laws under the closed mathematical formulation of the thermal gas-dynamic process.

Key words: conservation laws, generalized solutions, thermodynamic compatibility, entropy growth, kinetic energy loss, total pressure loss.

UDC: 519.63

Received: 14.11.2019
Revised: 14.11.2019
Accepted: 16.12.2019

DOI: 10.31857/S0044466920040092


 English version:
Computational Mathematics and Mathematical Physics, 2020, 60:4, 558–567

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© Steklov Math. Inst. of RAS, 2024