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Violation of Molecular Chaos in dissipative gases

Thorsten Poeschel·Nikolai V. Brilliantov·Thomas Schwager
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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.

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Thorsten Poeschel, Nikolai V. Brilliantov, Thomas Schwager. 2002-10-02. Violation of Molecular Chaos in dissipative gases. https://doi.org/10.1142/s012918310200411x

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