Formation of ordered structure and its effect on particle percolation in a vibrated bed

A. H. Esfandiary, K. J. Dong, A. B. Yu

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    Abstract

    Particle percolation in a vibrated bed is investigated by means of discrete element method (DEM). It is found that under some vibrational conditions, percolation becomes unsteady with the percolation velocity fluctuating in a wide range. This happens when dimensionless vibrational velocity, V b(A.(2Ï€f)/gD), is in a certain range, where A is the vibrational amplitude, f is the vibrational frequency, g is the gravitational acceleration and D is the diameter of large particles. The unsteady particle percolation in this range has been analysed on a particle scale, which reveals that V b (in the certain range) can favour the crystallization in the vibrated bed, which significantly decreases the particle percolation velocity. Such crystallizations occasionally happen, leading to the unsteady percolation behaviour.
    Original languageEnglish
    Title of host publicationPowders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media, 8-12 July 2013, Sydney, Australia
    PublisherAmerican Institute of Physics
    Pages747-750
    Number of pages4
    ISBN (Print)9780735411661
    DOIs
    Publication statusPublished - 2013
    EventInternational Conference on Micromechanics of Granular Media -
    Duration: 8 Jul 2013 → …

    Publication series

    Name
    ISSN (Print)0094-243X

    Conference

    ConferenceInternational Conference on Micromechanics of Granular Media
    Period8/07/13 → …

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