Volume 75, Number 4, August 2006
|Page(s)||521 - 527|
|Published online||07 July 2006|
Segregation in granular binary mixtures: Thermal diffusion
Departamento de Física, Universidad de Extremadura - E-06071 Badajoz, Spain
Corresponding author: firstname.lastname@example.org
Accepted: 21 June 2006
A 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.
PACS: 05.20.Dd – Kinetic theory / 45.70.Mg – Granular flow: mixing, segregation and stratification / 51.10.+y – Kinetic and transport theory of gases
© EDP Sciences, 2006
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