Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2002-10-02
Physics
Condensed Matter
Statistical Mechanics
11 pages, 4 figures
Scientific paper
10.1142/S012918310200411X
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.
Brilliantov Nikolai V.
Poeschel Thorsten
Schwager Thomas
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