Jean Rajchenbach
Laboratoire des Milieux Désordonnés et Hétérogènes (CNRS-UMR 7603)–Case 86, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris Cedex 05, France.
Dynamics of Grain Avalanches

We present experimental results concerning the nucleation and growth processes of grain avalanches. Starting from simple microscopic considerations, we propose an analytical derivation accounting for the avalanche growth as a function of time. The solution resembles very closely recent experimental observations. We show in particular that the two observed regimes of growth proceed from a singularity in the rear front velocity as a function of the slope.

Related papers
  1. J. Rajchenbach, Dynamics of grain avalanches, Physical Review Letter 88, 014301 (2002)
  2. J. Rajchenbach, Development of Grain Avalanches, Physical Review Letter 89, 074301 (2002)
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