Wall-Enhanced Convection in Vibrofluidized Granular Systems

Details Wall-Enhanced Convection in Vibrofluidized Granular Systems Wall-Enhanced Convection in Vibrofluidized Granular Systems

2001-11-13

arxiv.org/abs/cond-mat/0111237v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, 6 figures

Scientific paper

10.1103/PhysRevLett.89.064301

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.

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