Torroidal convection roll in a three-dimensional granular system

J Talbot and P Viot

Physica A: Statistical Mechanics and its Applications, 2002, vol. 314, issue 1, 672-677

Abstract: We study the behavior of a system of inelastic hard spheres in a gravitational field and contained in a cylinder by means of a molecular dynamics simulation with an event-driven algorithm. If energy is supplied to the system by a vibrating bottom wall, the system becomes fluidized and a convection roll, as evidenced by the time-averaged velocity field, appears. The convection is strongly influenced by the value of the particle–side-wall restitution coefficient: for elastic particle–side-wall collisions, the sense of the convection is reversed and the convection intensity is significantly reduced compared with the case of elastic collisions.

Keywords: Granular material; Convection (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:314:y:2002:i:1:p:672-677

DOI: 10.1016/S0378-4371(02)01169-X

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