Wall-Enhanced Convection in Vibrofluidized Granular Systems
arXiv:cond-mat/0111237 · doi:10.1103/PhysRevLett.89.064301
Abstract
An event-driven molecular dynamics simulation of inelastic hard spheres contained in a cylinder and subject to strong vibration reproduces accurately experimental results[1] for a system of vibrofluidized glass beads. In particular, we are able to obtain the velocity field and the density and temperature profiles observed experimentally. In addition, we show that the appearance of convection rolls is strongly influenced by the value of the sidewall-particle restitution coefficient. Suggestions for observing more complex convection patterns are proposed.
4 pages, 6 figures
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