The energy flux into a fluidized granular medium at a vibrating wall

Details The energy flux into a fluidized granular medium at a vibrating wall The energy flux into a fluidized granular medium at a vibrating wall

1996-09-06

arxiv.org/abs/cond-mat/9609066v1

Physics

Condensed Matter

5 pages, revtex, 7 postscript figures

Scientific paper

10.1103/PhysRevE.55.7767

We study the power input of a vibrating wall into a fluidized granular medium, using event driven simulations of a model granular system. The system consists of inelastic hard disks contained between a stationary and a vibrating elastic wall, in the absence of gravity. Two scaling relations for the power input are found, both involving the pressure. The transition between the two occurs when waves generated at the moving wall can propagate across the system. Choosing an appropriate waveform for the vibrating wall removes one of these scalings and renders the second very simple.

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