Volume 76, Number 3, November 2006
|Page(s)||360 - 366|
|Published online||07 October 2006|
Simulations of collision times in gravity-driven granular flow
Department of Applied Mathematics, The University of Western Ontario London, Ontario N6A 5B8, Canada
Accepted: 11 September 2006
We use simulations to investigate collision time distributions as one approaches the static limit of steady-state flow of dry granular matter. The collision times fall in a power law distribution with an exponent dictated by whether the grains are ordered or disordered. Remarkably, the exponents have almost no dependence on dimension. We are also able to resolve a disagreement between simulation and experiments on the exponent of the collision time power law distribution.
PACS: 05.20.Dd – Classical statistical mechanics: Kinetic theory / 45.70.Mg – Classical mechanics of discrete systems: Granular flow; mixing, segregation and stratification / 83.80.Fg – Rheology: Granular solids
© EDP Sciences, 2006
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