Granular Gas Cooling and Relaxation to the Steady State in Regard to the Overpopulated Tail of the Velocity Distribution

Abstract

We present a universal description of the velocity distribution function of granular gases, $f(v)$, valid for both, small and intermediate velocities where $v$ is close to the thermal velocity and also for large $v$ where the distribution function reveals an exponentially decaying tail. By means of large-scale Monte Carlo simulations and by kinetic theory we show that the deviation from the Maxwell distribution in the high-energy tail leads to small but detectable variation of the cooling coefficient and to extraordinary large relaxation time.

11 pages, 7 figures

References in corpus (1)

• Impact of high-energy tails on granular gas properties

Cited by in corpus (3)

• Velocity distribution of a homogeneously driven two-dimensional granular gas
• Velocity Distribution of a Homogeneously Cooling Granular Gas
• A note on the violation of the Einstein relation in a driven moderately dense granular gas