Modified Lees-Edwards Boundary conditions and viscous contact for numerical simulations of particles in a shear flow

Nicolas Verdon (1) , Aline Lefebvre-Lepot (2) , Patrice Laure (1, 3) , Laurent Lobry (4)

1 JAD - Laboratoire Jean Alexandre Dieudonné
2 CMAP - Centre de Mathématiques Appliquées - Ecole Polytechnique
3 CEMEF - Centre de Mise en Forme des Matériaux
4 LPMC - Laboratoire de physique de la matière condensée

We present a way to handle contacts between rigid particles in shear flow. The influence of such a modeling is shown by studying an example with 13 particles in 3D. Studying a concentrated suspension in 2D, we demonstrate that contact modelling as well as choice of boundary conditions influences the macroscopic properties of the suspension.

Mots clés: Contact; Fluid-structure interaction; Immersed domain method; Suspension; Viscous contact model

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Nicolas Verdon, Aline Lefebvre-Lepot, Patrice Laure, Laurent Lobry. Modified Lees-Edwards Boundary conditions and viscous contact for numerical simulations of particles in a shear flow. Revue Européenne de Mécanique Numérique/European Journal of Computational Mechanics, 2012, 121 (3-6 / Special Issue: French Conference on Computational Mechanics 2011: selected contributions), pp.397-406. ⟨10.1080/17797179.2012.714851⟩. ⟨hal-00783667⟩