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    Kink-induced transport and segregation in oscillated granular layers

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    PRL34301.pdf (908.8Kb)
    Date
    2003-09-26
    Author
    Moon, Sung Joon
    Goldman, Daniel I.
    Swift, J. B.
    Swinney, Harry L.
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    Abstract
    We use experiments and molecular dynamics simulations of vertically oscillated granular layers to study horizontal particle segregation induced by a kink (a boundary between domains oscillating out of phase). Counterrotating convection rolls carry the larger particles in a bidisperse layer along the granular surface to a kink, where they become trapped. The convection originates from avalanches that occur inside the layer, along the interface between solidified and fluidized grains. The position of a kink can be controlled by modulation of the container frequency, making possible systematic harvesting of the larger particles.
    URI
    http://hdl.handle.net/1853/44582
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    • Complex Rheology and Biomechanics Lab (CRAB LAB) [37]
    • Complex Rheology and Biomechanics Lab (CRAB LAB) Publications [37]

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