Influence of the lateral friction on the surface flow: a 3D numerical approach

Mathieu Renouf , Daniel Bonamy , Pierre Alart (1) , Frédéric Dubois (1)

1 LMGC - Laboratoire de Mécanique et Génie Civil

To understand the complexity of dense granular flows, we used three-dimensional (3D) numerical simulations which appears as complementary approaches to the experimental ones. Numerical simulations allow (i) to investigate the influence of parameters difficult to control experimentally and (ii) to measure quantities inacessible to experiments. In this paper we focus on numerical 3D rotating drums and shed light on the role of lateral friction on the rheology of dense granular systems. Our framework is the Non Smooth Contact Dynamics approach, powerful to perform accurate simulations of large systems of particles, essential to deal with simultaneous contacts. We point out the influence of lateral friction coefficient on the granular flow and compare the results to previous 2D simulations.

Domaines: Matériaux et structures en mécanique [physics.class-ph]; Matériaux et structures en mécanique [physics.class-ph]; Modélisation et simulation

Mathieu Renouf, Daniel Bonamy, Pierre Alart, Frédéric Dubois. Influence of the lateral friction on the surface flow: a 3D numerical approach. Powders and Grains 2005, 2005, Stuttgart, Germany. ⟨hal-00580805⟩