Segregation in granular binary mixtures: Thermal diffusion

Details Segregation in granular binary mixtures: Thermal diffusion Segregation in granular binary mixtures: Thermal diffusion

2006-03-09

arxiv.org/abs/cond-mat/0603232v3

Europhys. Lett. 75, 521 (2006)

Physics

Condensed Matter

Statistical Mechanics

4 figures. to be published in Europhys. Lett

Scientific paper

10.1209/epl/i2006-10143-4

A recent solution of the inelastic Boltzmann equation that applies for strong dissipation and takes into account non-equipartition of energy is used to derive an explicit expression for the thermal diffusion factor. This parameter provides a criterion for segregation that involves all the parameters of the granular binary mixture (composition, masses, sizes, and coefficients of restitution). The present work is consistent with recent experimental results and extends previous results obtained in the intruder limit case.

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