Computer simulations of rapid granular shear flows between parallel bumpy boundaries
- 1 June 1990
- journal article
- Published by AIP Publishing in Physics of Fluids A: Fluid Dynamics
- Vol. 2 (6) , 1042-1044
- https://doi.org/10.1063/1.857642
Abstract
In this Brief Communication the results of numerical simulations for the rapid, steady shear flow of identical disks are compared with the recent predictions of Hanes et al. [J. Appl. Mech. 5 5, 969 (1988)] for the shear stress, normal stress, and gap width. The smooth and nearly elastic disks are driven by identical, parallel, bumpy boundaries. The variations of the dynamic friction coefficient are confirmed by the simulations. The coefficient may be made large or small by suitably preparing the boundaries of the cell. The simulations also indicate that the predictions of kinetic theory apply to gaps as small as three particle diameters in width.Keywords
This publication has 1 reference indexed in Scilit:
- The Thickness of Steady Plane Shear Flows of Circular Disks Driven by Identical BoundariesJournal of Applied Mechanics, 1988