Expansion into a vacuum: A one-dimensional model

M. Bernstein, Jerome Percus

Research output: Contribution to journalArticle

Abstract

The dynamics of a one-dimensional hard-core fluid is examined subsequent to a sudden increase in the size of its bounding container; attention is focused upon the standard hydrodynamical variables: density, current density, local temperature, and local pressure. The rather complicated equilibrating density pattern is found explicitly, and all other relevant quantities expressed in terms of this pattern. In particular, the local bulk diffusion constant retains an anomalous ideal-gas form, whereas the local pressure decomposes into a local-equilibrium part and a specific wall-reflection contribution.

Original languageEnglish (US)
Pages (from-to)1642-1653
Number of pages12
JournalPhysical Review A
Volume37
Issue number5
DOIs
StatePublished - 1988

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vacuum
expansion
ideal gas
containers
current density
fluids
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Expansion into a vacuum : A one-dimensional model. / Bernstein, M.; Percus, Jerome.

In: Physical Review A, Vol. 37, No. 5, 1988, p. 1642-1653.

Research output: Contribution to journalArticle

Bernstein, M. ; Percus, Jerome. / Expansion into a vacuum : A one-dimensional model. In: Physical Review A. 1988 ; Vol. 37, No. 5. pp. 1642-1653.
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