Non-Equilibrium Sound Propagation in Discrete Velocity Models

Rainer Kwang Hua Chu, Yitshak Zohar

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Discrete velocity models developed by Gatignol are used to study the propagation properties of one-dimensional, plane sound waves in monatomic gases, which is fundamental in Rarefied Gases Dynamics and Nonequilibrium Thermodynamics. The governing equations for 4-, 6- and 8-velocity models are first linearized around a uniform state. Then, plane-wave solutions are found where the sound dispersion and attenuation are determined. The results show that only the 4-velocity model properly predicts the propagation of sound waves in the high Knudsen number regime in comparison with experimental data.

Original languageEnglish (US)
Pages (from-to)195-202
Number of pages8
JournalJournal of Non-Equilibrium Thermodynamics
Volume23
Issue number3
DOIs
StatePublished - Jan 1 1998

    Fingerprint

ASJC Scopus subject areas

  • Chemistry(all)
  • Physics and Astronomy(all)

Cite this