Storage and discharge of a granular fluid

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

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Abstract

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
Volume77
Issue number2
DOIs
Publication statusPublished - 2008

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missile silos
Vibrate
Fluid
Computational Simulation
Hydrostatics
fluids
viscous fluids
hydrostatics
Viscous Fluid
Flow Rate
beds
flow velocity
shear
Experiment
simulation

Keywords

  • IR-59959
  • METIS-253344

Cite this

Pacheco-Martinez, Hector ; van Gerner, Henk Jan ; Ruiz-Suarez, J.C. / Storage and discharge of a granular fluid. In: Physical review E: Statistical, nonlinear, and soft matter physics. 2008 ; Vol. 77, No. 2.
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Storage and discharge of a granular fluid. / Pacheco-Martinez, Hector; van Gerner, Henk Jan; Ruiz-Suarez, J.C.

In: Physical review E: Statistical, nonlinear, and soft matter physics, Vol. 77, No. 2, 021303, 2008.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Pacheco-Martinez, Hector

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AU - Ruiz-Suarez, J.C.

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AB - 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.

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KW - METIS-253344

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DO - 10.1103/PhysRevE.77.021303

M3 - Article

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JO - Physical review E: covering statistical, nonlinear, biological, and soft matter physics

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