Geodesic
Analysis of the Invariance Under the Galilean Transformation of Some Mathematical Models of Multicomponent Media
Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematičeskoe modelirovanie i programmirovanie, no. 13 (2012), pp. 69-73 Cet article a éte moissonné depuis la source Math-Net.Ru

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The analysis of the invariance under the Galilean transformation of the mathematical model of «frozen» gas suspension is done. It was shown that the equation of the total energy density of the gas phase in the model of «frozen» gas suspension was not invariant under Galilean transformations. This leads to appearance of the total energy density equation of the fictitious source term, which determines the growth of entropy. An additional increase of entropy leads to a violation of the second law of thermodynamics. In this paper a modification of the equation of the total energy density of the gas phase was proposed. The modification consisted in the fact that the right-hand side of the equation of conservation of total energy density was subtracted the work of interfacial forces. The analysis of this equation showed that the equation of the total energy density of the gas phase was invariant under Galilean transformations, and the equation for the entropy production didn’t contradict the second law of thermodynamics.
Keywords: mathematical model, invariance, multi-component mixture. 
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Yu. M. Kovalev; V. F. Kuropatenko. Analysis of the Invariance Under the Galilean Transformation of Some Mathematical Models of Multicomponent Media. Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematičeskoe modelirovanie i programmirovanie, no. 13 (2012), pp. 69-73. http://geodesic.mathdoc.fr/item/VYURU_2012_13_a6/

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