2020 Impact factor 1.890
Soft Matter and Biological Physics

Eur. Phys. J. E 1, 5-8

Rapid Note

Influence of roughness and dilatancy for dense granular flow along an inclined wall

P. Mills1 - M. Tixier1 - D. Loggia2

1 Laboratoire de Physique des Matériaux Divisés et des Interfaces, Université de Marne-la-Vallée, 5 boulevard Descartes,
77454 Champs-sur-Marne Cedex 2, France –
2 Université Montpellier 2, ISTEEM, Laboratoire HydroSciences, place Eugène Bataillon, C.C. 57,
34095 Montpellier Cedex 05, France
mills@univ-mlv.fr

Received 19 July 1999 and Received in final form 14 October 1999

Abstract
In a previous work [1], the flow velocity of a steady two-dimensional granular flow along an inclined wall was investigated. The scaling law for the velocity field was found in good agreement with recent experimental results. The purpose of the present paper is to reformulate in more systematic manner and in a somewhat more general context the equations of mass and momentum conservation for dense granular flow, and also to present some new results with particular emphasis on roughness influence and dynamic dilatancy. Theoretical results are found in good agreement with experiments.

PACS
83.70.Fn Granular solids - 45.90.+t Other topics in classical mechanics of discrete systems

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