Article
Simple model with facilitated dynamics for granular compaction
Author/s | Brey Abalo, José 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 |
Publication Date | 1999 |
Deposit Date | 2015-06-22 |
Published in |
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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 ... 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. |
Funding agencies | Dirección General de Investigación Científica y Técnica (DGICYT). España |
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PRE_1999_Sanchez_model.pdf | 97.24Kb | [PDF] | View/ | |