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Granular Matter

, Volume 4, Issue 2, pp 57–63 | Cite as

Lack of energy equipartition in homogeneous heated binary granular mixtures

  • Alain Barrat
  • Emmanuel Trizac
Article

Abstract

 We consider the problem of determining the granular temperatures of the components of a homogeneous binary heated mixture of inelastic hard spheres, in the framework of Enskog kinetic theory. Equations are derived for the temperatures of each species and their ratio, which is different from unity, as may be expected since the system is out of equilibrium. We focus on the particular heating mechanism where the inelastic energy loss is compensated by an injection through a random external force (“stochastic thermostat”). The influence of various parameters and their possible experimental relevance is discussed.

Keywords Transport of gases, Theory of gases, Granular mixtures 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Alain Barrat
    • 1
  • Emmanuel Trizac
    • 1
  1. 1.Laboratoire de Physique Théorique (UMR 8627 du CNRS), Bâtiment 210, Université de Paris-Sud, 91405 Orsay Cedex, France e-mails: Alain.Barrat@th.u-psud.fr, Emmanuel.Trizac@th.u-psud.frFrance

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