Granular Gases - the early stage
Statistical Mechanics
2007-05-23 v1
Abstract
We investigate the evolution of the velocity distribution function of a granular gas composed of viscoelastic particles in the homogeneous cooling state, i.e. before clustering occurs. The deviation of the velocity distribution function from the Maxwellian distribution is quantified by a Sonine polynomials expansion. The first non-vanishing Sonine coefficient a_2(t), reveals a complex time dependence which allows to assign the granular gas the property of an age. We discuss the possibility to measure the age of a granular gas.
Cite
@article{arxiv.cond-mat/0203401,
title = {Granular Gases - the early stage},
author = {Nikolai V. Brilliantov and Thorsten Poeschel},
journal= {arXiv preprint arXiv:cond-mat/0203401},
year = {2007}
}
Comments
12 pages, 3 figures