Volume 40, Number 4, November II 1997
|Page(s)||393 - 398|
|Section||Classical areas of phenomenology|
|Published online||01 September 2002|
Spectral statistics of global avalanches along granular piles
Theoretische Physik I, Institut für Physik,
Universität Augsburg, D-86135 Augsburg, Germany
Accepted: 6 October 1997
In a seminal experiment, Jaeger et al. (Phys. Rev. Lett., 62 (1989) 40) measured the power spectrum of the velocity of avalanches along a granular pile in a rotating drum. Although their findings started an actively discussed debate on whether self-organized criticality rules granular avalanche dynamics, their experimental results have not been explained in theoretical detail yet. By the use of a simple dynamical model that incorporates the basic deterministic mechanisms of global avalanche flow as well as their stochastic aspects, we find almost perfect agreement between the model results and Jaeger et al.'s experimental data. We also discuss in detail the significance of the underlying physical mechanisms.
PACS: 46.10.+z – Mechanics of discrete systems / 83.20.Bg – Macroscopic (phenomenological) theories / 02.50.Ey – Stochastic processes
© EDP Sciences, 1997
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.