Storage and discharge of a granular fluid.
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.
Pacheco-Martinez
Hector
H
Departamento de Física Aplicada, CINVESTAV-Mérida, Mérida, Yucatán, Mexico.
van Gerner
Henk Jan
HJ
Ruiz-Suárez
J C
JC