Interdisciplinary Seminar in Nonlinear Science

Title: Gravity-driven dense granular flows
Speaker: Leo Silbert
Speaker Info: University of Chicago
Brief Description:
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The rheology of dense granular assemblies is studied using large-scale molecular dynamics simulations for the case of gravity driven flows in an inclined plane geometry, i.e. chute flow. Over a wide range of parameter space, a steady state flow regime exists in which the energy input from gravity balances that dissipated from friction and inelastic collisions. The corresponding phase behaviour is discussed. Within the steady state regime the flow velocity depth-profile is seen to depend on how close the system is to jamming and matches several experimental studies. Static granular packings are also discussed.
Date: Friday, January 24, 2003
Time: 2:00PM
Where: Tech M416
Contact Person: Paul Umbanhowar
Contact email: umbanhowar@northwestern.edu
Contact Phone: 847-467-7291
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