On dense granular flows

Abstract : The behaviour of dense assemblies of dry grains submitted to continuous shear deformation has been the subject of many experiments and discrete particle simulations. This paper is a collective work carried out among the French research group GDR Milieux Divisés. It proceeds from the collection of results on steady uniform granular flows obtained by different groups in six different geometries both in experiments and numerical works. The goal is to achieve a coherent presentation of the relevant quantities to be measured i.e. flowing thresholds, kinematic profiles, effective friction, etc. First, a quantitative comparison between data coming from different experiments in the same geometry enforces the robust features in each case. Second, a transversal analysis of the data across the different configurations, allows us to identify the relevant dimensionless parameters, the different flow regimes and to propose simple interpretations. The present work, more than a simple juxtaposition of results, underlines the richness of granular flows and enhances the open problem of defining a single rheology
keyword : granular flow
Type de document :
Pré-publication, Document de travail
collectif paper written by the GdR Milieux divises (submitted the 12/12/03). 2003
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Contributeur : Olivier Pouliquen <>
Soumis le : mercredi 17 décembre 2003 - 20:34:37
Dernière modification le : mardi 24 avril 2018 - 17:20:11
Document(s) archivé(s) le : lundi 29 mars 2010 - 17:14:49




Gdr Midi. On dense granular flows. collectif paper written by the GdR Milieux divises (submitted the 12/12/03). 2003. 〈hal-00000959〉



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