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arxiv: 1710.10751 · v1 · pith:YB7TJ4PBnew · submitted 2017-10-30 · 🧮 math.AP · math.FA

Measure-valued solutions to the complete Euler system revisited

classification 🧮 math.AP math.FA
keywords systemmeasure-valuedeulersolutionscompletedissipativeentropyfluid
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We consider the complete Euler system describing the time evolution of a general inviscid compressible fluid. We introduce a new concept of measure-valued solution based on the total energy balance and entropy inequality for the physical entropy without any renormalization. This class of so-called dissipative measure-valued solutions is large enough to include the vanishing dissipation limits of the Navier-Stokes-Fourier system. Our main result states that any sequence of weak solutions to the Navier-Stokes-Fourier system with vanishing viscosity and heat conductivity coefficients generates a dissipative measure-valued solution of the Euler system under some physically grounded constitutive relations. Finally, we discuss the same asymptotic limit for the bi-velocity fluid model introduced by H.Brenner.

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