VIOLATION OF MOLECULAR CHAOS IN DISSIPATIVE GASES

Thorsten Pöschel (), Nikolai V. Brilliantov () and Thomas Schwager ()
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Thorsten Pöschel: Humboldt-Universität zu Berlin, Charité, Institut für Biochemie, Monbijoustraße 2, D-10117 Berlin, Germany
Nikolai V. Brilliantov: Humboldt-Universität zu Berlin, Charité, Institut für Biochemie, Monbijoustraße 2, D-10117 Berlin, Germany
Thomas Schwager: Humboldt-Universität zu Berlin, Charité, Institut für Biochemie, Monbijoustraße 2, D-10117 Berlin, Germany

International Journal of Modern Physics C (IJMPC), 2002, vol. 13, issue 09, 1263-1272

Abstract: Numerical simulations of a dissipative hard sphere gas reveal a dependence of the cooling rate on correlation of the particle velocities due to inelastic collisions. We propose a coefficient which characterizes the velocity correlations in the two-particle velocity distribution function and express the temperature decay rate in terms of this coefficient. The analytical results are compared with numerics.

Keywords: Kinetic gas theory; many-particle systems; dissipative gases; granular gases; velocity correlations (search for similar items in EconPapers)
Date: 2002
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DOI: 10.1142/S012918310200411X

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