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Characterization of the stationary states of a dilute vibrofluidized granular bed

Sunthar, P and Kumaran, V (2001) Characterization of the stationary states of a dilute vibrofluidized granular bed. In: Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), 64 (4). 041303/1-12.

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Abstract

This paper reports two phenomena in an event driven simulation of a dilute vibrofluidized granular material in two dimensions. Both phenomena show inhomogeneity in the horizontal direction. They are convection rolls similar to the Rayleigh-Bénard thermal convection in fluids, and a clustering instability, where the bed spontaneously phase separates into coexisting dense and dilute regions. Detailed investigations show that these are different from the known instabilities in a vibrated granular medium. Characterization of these instabilities is carried out with a phase diagram using suitable parameters from the kinetic theory of vibrofluidized beds.

Item Type: Journal Article
Additional Information: The DOI is currently only displayed. Copyright for this article belongs to American Physical Society (APS)
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 16 Jul 2004
Last Modified: 19 Sep 2010 04:14
URI: http://eprints.iisc.ernet.in/id/eprint/1070

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