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Updated: Jul 6, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Storage and discharge of a granular fluid
Hector Pacheco-Martinez1, Henk Jan van Gerner, J C Ruiz-Suárez
1Departamento de Física Aplicada, CINVESTAV-Mérida, Mérida, Yucatán, Mexico.
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.
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