Boundary Conditions for Planar Granular Flows
Publication: Journal of Engineering Mechanics
Volume 115, Issue 6
Abstract
Boundary conditions are formulated for planar, smooth, rapidly sheared granular flows. The formulation allows the slip at the wall to be large compared to the local mean particle fluctuation speed. In previous work by Jenkins and Richman, slip was assumed small. In order to allow for large slip and obtain tractable results, a simple approximation to the particle velocity distribution is employed in the formulation for the traction forces and energy dissipation rate at the wall. The theory is applied to the Couette flow of granular material and shown to compare well to numerical simulations, and to Jenkins and Richman in the limit of small slip.
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Information & Authors
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Published In
Journal of Engineering Mechanics
Volume 115 • Issue 6 • June 1989
Pages: 1283 - 1302
Copyright
Copyright © 1989 ASCE.
History
Published online: Jun 1, 1989
Published in print: Jun 1989
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