Computer Simulations of Rapid Granular Flows Interacting with a Flat, Frictional Boundary

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by M. Y. Louge, Cornell Univ, Ithaca, United States,
J. T. Jenkins, Cornell Univ, Ithaca, United States,
M. A. Hopkins, Cornell Univ, Ithaca, United States,

Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond:

Abstract: This paper compares the results of numerical simulations for the rapid, steady flow of identical spheres colliding with a flat frictional boundary with the recent predictions of Jenkins for the dynamic friction coefficient and flux of fluctuating energy at the boundary. The predicted variation of the dynamic friction coefficient is observed in the simulations. However, because the model ignores the spin fluctuations, it provides only a qualitative description of the flux.

Subject Headings: Flow simulation | Friction | Domain boundary | Numerical models | Granular materials | Solids flow | Steady flow | Spheres |

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