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Piecewise continuous distribution function method and ultrasound at half space

M. A. Solovchuk·S. B. Leble
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Abstract

The system of hydrodynamic-type equations, derived by two-side distribution function for a stratified gas in gravity field is applied to a problem of ultrasound propagation and attenuation. The background state and linearized version of the obtained system is studied and compared with the Navier-Stokes one at arbitrary Knudsen numbers. The WKB solutions for ultrasound in a stratified medium are constructed in explicit form. The problem of a generation by a moving plane in a rarefied gas is explored and used as a test while compared with experiment.

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M. A. Solovchuk, S. B. Leble. 2006-02-03. Piecewise continuous distribution function method and ultrasound at half space. https://arxiv.org/abs/physics/0602024

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