Fluidization of a vertically oscillated shallow granular layer

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dc.creatorKreft, Jennifer
dc.creatorSchroeter, Matthias
dc.creatorSwift, Jack B.
dc.creatorSwinney, Harry L.
dc.date2007-04-29
dc.date2007-08-01
dc.date.accessioned2026-07-07T08:21:34Z
dc.date.available2026-07-07T08:21:34Z
dc.descriptionMolecular dynamics simulations are used to study fluidization of a vertically vibrated, three-dimensional shallow granular layer. As the container acceleration is increased above g, the granular temperature and root mean square particle displacement increase, gradually fluidizing the layer. For nearly elastic particles, or low shaking frequencies, or small layer depths, the end of the fluidization process is marked by an abrupt increase in the granular temperature and rms particle displacement. The layer is then fully fluidized since macroscopic, fluid-like phenomena such as convection rolls and surface waves are observed. Increasing the total dissipation (by either decreasing the restitution coefficient or increasing the total number of particles) decreases the increase in granular temperature and rms particle displacement at fluidization, and shifts the increase to higher accelerations. Increasing the frequency also decreases the magnitude of the jump, and shifts the change to lower accelerations.
dc.descriptionAfter further investigations, we find that the results for the temperature and rms displacement at low $Γ$ depend on the functional form of the velocity dependence of the restitution coefficient
dc.identifierhttps://arxiv.org/abs/0704.3852
dc.identifierhttp://arxiv.org/abs/0704.3852
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/135360
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleFluidization of a vertically oscillated shallow granular layer
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