Simulation of density segregation in vibrated beds

C. Zeilstra, M.A. van der Hoef, J.A.M. Kuipers

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    Abstract

    We have investigated by numerical simulation the density segregation of fine equal-sized bronze and glass particles subject to vertical vibrations. The model was found to be capable of predicting the two main segregation forms (“bronze on top” and “sandwich”) in roughly the same regions of the phase diagram as was found experimentally by Burtally et al. We investigated the effects of pressure air forcing, friction and restitution of kinetic energy in collisions, and box size on the segregation behavior. We find that next to the interstitial air friction also has a large influence on the formation of the sandwich structure.
    Original languageEnglish
    Article number031309
    Number of pages13
    JournalPhysical review E: Statistical, nonlinear, and soft matter physics
    Volume77
    Issue number3
    DOIs
    Publication statusPublished - 2008

    Keywords

    • METIS-254251
    • IR-59283

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