Granular discorectangle in a thermalized bath of hard disks

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dc.creatorGomart, H.
dc.creatorTalbot, J.
dc.creatorViot, P.
dc.date2004-08-10
dc.date.accessioned2026-07-07T02:59:39Z
dc.date.available2026-07-07T02:59:39Z
dc.descriptionBy using the Enskog-Boltzmann approach, we study the steady-state dynamics of a granular discorectangle placed in a two-dimensional bath of thermalized hard disks. Hard core collisions are assumed elastic between disks and inelastic between the discorectangle and the disks, with a normal restitution coefficient $α<1$. Assuming a Gaussian ansatz for the probability distribution functions, we obtain analytical expressions for the granular temperatures. We show the absence of equipartition and investigate both the role of the anisotropy of the discorectangle and of the relative ratio of the bath particles to the linear sizes of the discorectangle. In addition, we investigate a model of a discorectangle with two normal restitution coefficients for collisions along the straight and curved surfaces of the discorectangle. In this case one observes equipartition for a non trivial ratio of normal restitution coefficients.
dc.description10 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0408205
dc.identifierhttp://arxiv.org/abs/cond-mat/0408205
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24591
dc.subjectStatistical Mechanics
dc.titleGranular discorectangle in a thermalized bath of hard disks
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