Energy nonequipartition in a sheared granular mixture

Details Energy nonequipartition in a sheared granular mixture Energy nonequipartition in a sheared granular mixture

2002-04-09

arxiv.org/abs/cond-mat/0204205v1

Molecular Simulation 29, 357-362 (2003)

Physics

Condensed Matter

Statistical Mechanics

3 figures

Scientific paper

The kinetic granular temperatures of a binary granular mixture in simple shear flow are determined from the Boltzmann kinetic theory by using a Sonine polynomial expansion. The results show that the temperature ratio is clearly different from unity (as may be expected since the system is out of equilibrium) and strongly depends on the restitution coefficients as well as on the parameters of the mixture. The approximate analytical calculations are compared with those obtained from Monte Carlo simulations of the Boltzmann equation showing an excellent agreement over the range of parameters investigated. Finally, the influence of the temperature differences on the rheological properties is also discussed.

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