CHED 1383 |
| We examine systems of vibrofluidized granular particles using event-driven (molecular dynamics) simulation. Our model consists of N inelastic hard spheres contained in an open, vertical cylinder of radius R in a gravitational field. Power is injected by a vibrating base and energy is dissipated by particle-particle and particle-container collisions. For values of the coefficients of restitution corresponding to those observed in experimental studies, a convection roll appears in a monodisperse system. By analyzing the velocity fields computed during the course of the simulations, we have studied the strength and location of the convection roll as a function of N and R. We have also examined convection, packing fraction and granular temperature profiles in a polydisperse mixture with a gaussian size distribution. |
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Undergraduate Research Poster Session: Physical Chemistry
2:00 PM-4:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |