Inhomogeneous relaxation in vibrated granular media: consolidation waves

Details Inhomogeneous relaxation in vibrated granular media: consolidation waves Inhomogeneous relaxation in vibrated granular media: consolidation waves

2000-10-18

arxiv.org/abs/cond-mat/0010268v1

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 13 figures

Scientific paper

We investigate the spatial dependence of the density of vibrated granular beds, using simulations based on a hybrid Monte Carlo algorithm. We find that the initial consolidation is typically inhmogeneous, both in the presence of a constant shaking intensity and when the granular bed is submitted to `annealed shaking'. We also present a theoretical model which explains such inhomogeneous relaxation in terms of a `consolidation wave', in good qualitative agreement with our simulations. Our results are also in qualitative agreement with recent simulations.

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