High Mach number limit of one-dimensional piston problem for non-isentropic compressible Euler equations: Polytropic gas

We study the high Mach number limit of the one dimensional piston problem for the full compressible Euler equations of polytropic gas, for both cases that the piston rushes into or recedes from the uniform still gas, at a constant speed. There are two different situations, and one needs to consider...

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Bibliographic Details
Published in:Journal of mathematical physics 2020-01, Vol.61 (1)
Main Authors: Qu, Aifang, Yuan, Hairong, Zhao, Qin
Format: Article
Language:English
Subjects:
Compressibility
Euler-Lagrange equation
Eulers equations
High Mach number
Mach number
Mathematical analysis
Physics
Radon
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Summary:We study the high Mach number limit of the one dimensional piston problem for the full compressible Euler equations of polytropic gas, for both cases that the piston rushes into or recedes from the uniform still gas, at a constant speed. There are two different situations, and one needs to consider measure solutions of the Euler equations to deal with the concentration of mass on the piston or formation of vacuum. We formulate the piston problem in the framework of Radon measure solutions and show its consistency by proving that the integral weak solutions of the piston problems converge weakly in the sense of measures to (singular) measure solutions of the limiting problems, as the Mach number of the piston increases to infinity.
ISSN:0022-2488
1089-7658
DOI:10.1063/1.5053789