Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2000-10-02
Phys. Rev. E 63, 042301 (2001).
Physics
Condensed Matter
Disordered Systems and Neural Networks
5 pages, 3 figures
Scientific paper
10.1103/PhysRevE.63.042301
We introduce a model for granular flow in a one-dimensional rice pile that incorporates rolling effects through a long-range rolling probability for the individual rice grains proportional to $r^{-\rho}$, $r$ being the distance traveled by a grain in a single topling event. The exponent $\rho$ controls the average rolling distance. We have shown that the crossover from power law to stretched exponential behaviors observed experimentally in the granular dynamics of rice piles can be well described as a long-range effect resulting from a change in the transport properties of individual grains. We showed that stretched exponential avalanche distributions can be associated with a long-range regime for $1<\rho<2$ where the average rolling distance grows as a power law with the system size, while power law distributions are associated with a short range regime for $\rho>2$, where the average rolling distance is independent of the system size.
Cannas Sergio A.
Gleiser Pablo M.
Tamarit Francisco A.
Zheng Bing
No associations
LandOfFree
Long-range effects in granular avalanching does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Long-range effects in granular avalanching, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Long-range effects in granular avalanching will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-530724