Torroidal convection roll in a three-dimensional granular system
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.
Year of publication: |
2002
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Authors: | Talbot, J ; Viot, P |
Published in: |
Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 314.2002, 1, p. 672-677
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Publisher: |
Elsevier |
Subject: | Granular material | Convection |
Saved in:
Online Resource
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