| Type de publication : |
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Preprint, Working Paper, Document sans référence, etc. |
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| Domaine : |
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| Titre : |
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On dense granular flows |
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| Auteur(s) : |
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Gdr Midi ( ) 1 |
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| Laboratoire : |
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Groupement De Recherche Milieux divisés (G.D.R MIDI) |
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CNRS : GDR2181 – Université Paul Cézanne - Aix-Marseille III – Université d'Auvergne - Clermont-Ferrand I – Institut National Polytechnique de Grenoble (INPG) – Université Montpellier II - Sciences et techniques – Université d'Orléans – Université Paris XI - Paris Sud – Ecole normale supérieure de Paris - ENS Paris – École normale supérieure de Cachan - ENS Cachan – École Normale Supérieure - Lyon – Ecole Centrale de Lyon – ESPCI ParisTech |
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IUSTI UMR 6595 5 rue Enrico Fermi 13453 MARSEILLE CEDEX 13 |
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France |
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| Résumé : |
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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 |
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Langue du texte
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Anglais |
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| Mots Clés : |
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granular flow |
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| Classification : |
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45.70.-n |
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| Commentaire : |
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collectif paper written by the GdR Milieux divises (submitted the 12/12/03) |
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