Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-1981 - C7-1986
DOI http://dx.doi.org/10.1051/jp4:19937317
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-1981-C7-1986

DOI: 10.1051/jp4:19937317

Recent advances in computer modelling of granular systems

R. JULLIEN1, P. MEAKIN2 and A. PAVLOVITCH3

1  Laboratoire de Science des Matériaux Vitreux, Université Montpellier II, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
2  Physics Department, University of Oslo, P.O. Box 1048, Blindern, 0316 Oslo 3, Norway
3  Section de Recherche de Métallurgie Physique, Centre d'Etudes de Saclay, BP. 2, 91191 Gif-sur-Yvette cedex, France


Abstract
We present simple computer algorithms able to build random packings of spheres using the ballistic deposition model and we show how they can be used to investigate several size segregation phenomena occuring in granular systems : 1) penetration of a small sphere in a packing of large ones, 2) size-segregation in the formation of a heap or when pouring a silo, 3) size-segregation by shaking. In the last case, the computer simulation provides a very simple geometrical explanation of the phenomenon.



© EDP Sciences 1993