Forcing and Velocity Correlations in a Vibrated Granular Monolayer

Preprint

14 March 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0203312

Abstract

The role of forcing on the dynamics of a vertically shaken granular monolayer is investigated. Using a flat plate, surprising negative velocity correlations are measured. A mechanism for this anti-correlation is proposed with support from both experimental results and molecular dynamics simulations. Using a rough plate, velocity correlations are positive, and the velocity distribution evolves from a gaussian at very low densities to a broader distribution at high densities. These results are interpreted as a balance between stochastic forcing, interparticle collisions, and friction with the plate.

Keywords

FORCING ON THE DYNAMICS
VELOCITY CORRELATIONS
GRANULAR MONOLAYER
MOLECULAR DYNAMICS
VIBRATED GRANULAR
STOCHASTIC
FRICTION
PLATE

All Related Versions

Version 1, 2002-03-14, ArXiv
Published version: Physical Review Letters, 89 (8), 084301.

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