Scaling behavior of immersed granular flows

Type Article
Date 2017
Language English
Author(s) Amarsid L.1, 2, 3, Delenne J.-Y.4, Mutabaruka PatrickORCID5, Monerie Y.2, 3, Perales F.1, 3, Radjai F.2, 3, 5
Affiliation(s) 1 : IRSN, PSN, CE Cadarache, BP3-13115 St Paul-Lez-Durance Cedex, France
2 : LMGC, CNRS - University of Montpellier, 163 rue Auguste Broussonnet, 34090 Montpellier, France
3 : Laboratoire MIST, IRSN-CNRS-University of Montpellier, France
4 : IATE, UMR1208 INRA - CIRAD - University of Montpellier - SupAgro, 34060 Montpellier, France
5 : UMI CNRS-MIT, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge 02139, USA
Meeting Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
Source EPJ Web of Conferences (2100-014X) (EDP Sciences), 2017 , Vol. 140 , P. 09044 (4p.)
DOI 10.1051/epjconf/201714009044
Note Section Fluids and particles

The shear behavior of granular materials immersed in a viscous fluid depends on fluid properties (viscosity, density), particle properties (size, density) and boundary conditions (shear rate, confining pressure). Using computational fluid dynamics simulations coupled with molecular dynamics for granular flow, and exploring a broad range of the values of parameters, we show that the parameter space can be reduced to a single parameter that controls the packing fraction and effective friction coefficient. This control parameter is a modified inertial number that incorporates viscous effects.

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