From particle segregation to the granular clock

Details From particle segregation to the granular clock From particle segregation to the granular clock

2005-07-20

arxiv.org/abs/cond-mat/0507478v2

Physics Letters A, 343, 2005, 224

Physics

Condensed Matter

Statistical Mechanics

10 pages

Scientific paper

10.1016/j.physleta.2005.06.006

Recently several authors studied the segregation of particles for a system composed of mono-dispersed inelastic spheres contained in a box divided by a wall in the middle. The system exhibited a symmetry breaking leading to an overpopulation of particles in one side of the box. Here we study the segregation of a mixture of particles composed of inelastic hard spheres and fluidized by a vibrating wall. Our numerical simulations show a rich phenomenology: horizontal segregation and periodic behavior. We also propose an empirical system of ODEs representing the proportion of each type of particles and the segregation flux of particles. These equations reproduce the major features observed by the simulations.

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