Abstract
The evolution of a granular gas of viscoelastic particles in the homogeneous cooling state is studied. The velocity distribution function of granular particles and the time dependence of the mean kinetic energy of particles (granular temperature) are found. The noticeable deviation of the distribution function from the Maxwell distribution and its non-monotonous evolution are established. The perturbation theory with respect to the small dispersion parameter is elaborated and the analytical expressions for the asymptotic time dependence of the velocity distribution function and the granular gas temperature are derived.
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Original Russian Text © A.S. Bodrova, N.V. Brilliantov, 2009, published in Vestnik Moskovskogo Universiteta. Fizika, 2009, No. 2, pp. 25–28.
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Bodrova, A.S., Brilliantov, N.V. Cooling kinetics of a granular gas of viscoelastic particles. Moscow Univ. Phys. 64, 128–132 (2009). https://doi.org/10.3103/S0027134909020064
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DOI: https://doi.org/10.3103/S0027134909020064