Granular Gases - the early stage

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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.
12 pages, 3 figures

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/19051

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0203401
 http://arxiv.org/abs/cond-mat/0203401
 In: D. Reguera, L.L. Bonilla, M. Rubi (Eds.): Coherent Structures in Complex Systems, Lecture Notes in Physics, Springer (2001), p. 408

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arXiv