Kink-induced transport and segregation in oscillated granular layers
arXiv:cond-mat/0308378 · doi:10.1103/PhysRevLett.91.134301
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). Counter-rotating 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.
arXiv comment4 pages, 5 figures. to appear in Phys. Rev. Lett
References in corpus (4)
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