From particle segregation to the granular clock

R. Lambiotte, L. Brenig, J.M. Salazar

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    Abstract

    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.
    Original languageEnglish
    Pages (from-to)224-230
    Number of pages7
    JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
    Volume343
    Issue number1-3
    DOIs
    Publication statusPublished - 1 Aug 2005

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