Self-Organization in a Granular Medium by Internal Avalanches

Details Self-Organization in a Granular Medium by Internal Avalanches Self-Organization in a Granular Medium by Internal Avalanches

2000-09-12

arxiv.org/abs/cond-mat/0009174v1

Phase Transitions, 75, 529 (2002)

Physics

Condensed Matter

Soft Condensed Matter

A short review of 10 pages (Revtex), 14 eps figures (included)

Scientific paper

Internal avalanches of grain displacements can be created inside a granular material kept in a bin in two ways: (i) By removing a radomly selected grain at the bottom of the bin (ii) By breaking a stable arch of grains clogging a hole at the bottom of the bin. Repeated generations of such avalanches lead the system to a steady state. The question asked, is this state a critical state as that in Self-Organized Criticality? We review here some of the recent studies on this problem using cellular automata as well as hard disc models.

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