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
Copyright EDP Sciences, Società Italiana di Fisica, Springer-Verlag
