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Exploring the limits of granular hydrodynamics: A horizontal array of inelastic particles

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2009
auteur(s) Eshuis Peter; Van der Weele Ko; Calzavarini Enrico; Van der Meer Devaraj; Lohse Detlef
journal (abréviation) Physical Review E (Phys. Rev. E)
volume (numéro) 80
numéro de papier 011302
  
résumé The limits of granular hydrodynamics are explored in the context of the one-dimensional granular system introduced by Du, Li, and Kadanoff 􏰣Phys. Rev. Lett. 74, 1268 􏰡1995􏰠􏰤. The density profile of the characteristic steady state, in which a single particle commutes between the driving wall and a dense cluster, is well captured by a hydrodynamic description provided that the finite size of the particles is incorporated. The temperature, however, is not well described: since all energy exchange is located at the border of the cluster, it is precisely for this quantity that the continuum approach breaks down.
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