G. C. Barker, Anita Mehta
Published 1999-12-16, updated 2000-03-01Version 2
We describe the surface properties of a simple lattice model of a sandpile that includes evolving structural disorder. We present a dynamical scaling hypothesis for generic sandpile automata, and additionally explore the kinetic roughening of the sandpile surface, indicating its relationship with the sandpile evolution. Finally, we comment on the surprisingly good agreement found between this model, and a previous continuum model of sandpile dynamics, from the viewpoint of critical phenomena.
Comments: 8 Pages, 7 Figures (in 15 parts); accepted for publication in Physical Review E
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