Boltzmann equation and hydrodynamics beyond Navier–Stokes
A. V. Bobylev
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Source: Crossref
Published: Mar 19, 2018
DOI: 10.1098/rsta.2017.0227
Open original source ↗Source abstract
We consider in this paper the problem of derivation and regularization of higher (in Knudsen number) equations of hydrodynamics. The author’s approach based on successive changes of hydrodynamic variables is presented in more detail for the Burnett level. The complete theory is briefly discussed for the linearized Boltzmann equation. It is shown that the best results in this case can be obtained by using the ‘diagonal’ equations of hydrodynamics. Rigorous estimates of accuracy of the Navier–Stokes and Burnett approximations are also presented. This article is part of the theme issue ‘Hilbert’s sixth problem’.
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