Inertia and Air Drag in the Brazil Nut Problem
arXiv:cond-mat/0205446 · doi:10.1103/PhysRevE.68.041301
Abstract
The rise dynamics of a large spherical particle, in a granular bed under vertical vibrations, is experimentally studied. An inductive device has been designed to track the particle while it climbs through the bed under different conditions. A simple model based in energy considerations is presented to explain our experimental data, drawing important conclusions about the physics of the phenomenon.
5 pages, 6 figures. Latex