Storage and discharge of a granular fluid

Hector Pacheco-Martinez, Henk Jan van Gerner, J.C. Ruiz-Suarez

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Experiments and computational simulations are carried out to study the behavior of a granular column in a silo whose walls are able to vibrate horizontally. The column is brought to a steady fluidized state and it behaves similar to a hydrostatic system. We study the dynamics of the granular discharge through openings at the bottom of the silo in order to search for a Torricelli-like behavior. We show that the flow rate scales with the wall induced shear rate, and at high rates, the granular bed indeed discharges similar to a viscous fluid.
Original languageEnglish
Article number021303
Number of pages6
JournalPhysical review E: Statistical, nonlinear, and soft matter physics
Issue number2
Publication statusPublished - 2008


  • IR-59959
  • METIS-253344


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