A nonlinear diffusion model for granular segregation

We study a set of nonlinear diffusion equations describing the evolution of densely packed particles under gravity subject to random vibrations. Although the thermodynamics of the model predicts no phase separation at all, the dynamics displays both normal and reverse segregation depending on the ma...

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Bibliographic Details
Published inPhysica A Vol. 327; no. 1; pp. 94 - 98
Main Authors Fernandes, H.C.Marques, Arenzon, J.J, Levin, Y, Sellitto, M
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2003
Subjects
Brazil nut effect
Granular systems
Jamming transition
45.70.Mg
45.70.−n
Granular systems
Jamming transition
Brazil nut effect
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ISSN0378-4371
1873-2119
DOI10.1016/S0378-4371(03)00457-6

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Summary:We study a set of nonlinear diffusion equations describing the evolution of densely packed particles under gravity subject to random vibrations. Although the thermodynamics of the model predicts no phase separation at all, the dynamics displays both normal and reverse segregation depending on the mass of the species present in the system.
ISSN:0378-4371
1873-2119
DOI:10.1016/S0378-4371(03)00457-6