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Simple model with facilitated dynamics for granular compaction

 

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Author: Brey Abalo, Javier
Prados Montaño, Antonio
Sánchez-Rey, Bernardo
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Universidad de Sevilla. Departamento de Física Aplicada I
Date: 1999
Published in: Physical Review E, 60(5), 5685--5692: 1-8
Document type: Article
Abstract: A simple lattice model is used to study compaction in granular media. As in real experiments, we consider a series of taps separated by large enough waiting times. The relaxation of the density exhibits the characteristic inverse logarithmic law. Moreover, we have been able to identify analytically the relevant time scale, leading to a relaxation law independent of the specific values of the parameters. Also, an expression for the asymptotic density reached in the compaction process has been derived. The theoretical predictions agree fairly well with the results from the Monte Carlo simulation.
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Format: PDF

URI: http://hdl.handle.net/11441/25622

DOI: 10.1103/PhysRevE.60.5685

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