Issue |
Europhys. Lett.
Volume 43, Number 5, September I 1998
|
|
---|---|---|
Page(s) | 591 - 597 | |
Section | Cross-disciplinary physics and related areas of science and technology | |
DOI | https://doi.org/10.1209/epl/i1998-00402-x | |
Published online | 01 September 2002 |
Segregation of granular mixtures in the presence of compaction
1
Dipartimento di Matematica, Università di Roma “La Sapienza”, Piazzale Aldo Moro 2, 00185 Roma, Italy
2
Dipartimento di Fisica, Università di Napoli “Federico II”, INFM and INFN Sezione di Napoli
3
PMMH Ecole Supérieure de Physique et Chimie Industrielles, 10, rue Vauquelin 75231, Paris Cedex 05, France
4
ICA1, Universität Stuttgart, Germany
5
ENEA Research Center - Località Granatello, C.P. 32 80055 Portici, Napoli, Italy
Received:
9
October
1998
Accepted:
8
July
1998
We study the segregation phenomena in granular media in the framework of Tetris-like models for granular compaction. The models, which focus on the geometrical properties of mixtures, exhibit segregation, i.e. separation of particles with different degrees of geometrical frustration. This effect is related to the effective average mobilities of the different particles. We study these effects in the context of an analytical mean-field–like model.
PACS: 81.05.Rm – Porous materials; granular materials / 05.50.+q – Lattice theory and statistics; Ising problems / 05.70.Ln – Nonequilibrium thermodynamics, irreversible processes
© EDP Sciences, 1998
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