Characterization of the stationary states of a dilute vibrofluidized granular bed

Sunthar, P. ; Kumaran, V. (2001) Characterization of the stationary states of a dilute vibrofluidized granular bed Physical Review E, 64 (4). 041303_1-041303_12. ISSN 1063-651X

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Official URL: http://pre.aps.org/abstract/PRE/v64/i4/e041303

Related URL: http://dx.doi.org/10.1103/PhysRevE.64.041303

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-Benard 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:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:18587
Deposited On:17 Nov 2010 12:45
Last Modified:17 May 2016 03:17

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