Volume 67, Number 3, August 2004
|Page(s)||342 - 348|
|Published online||01 July 2004|
A multi-scaling analysis of the surface of a three-dimensional pile of rice
Division of Physics and Astronomy, Vrije Universiteit De Boelelaan 1081, 1081HV Amsterdam, The Netherlands
Accepted: 26 May 2004
The scaling properties of the surface of a three-dimensional rice pile are studied. In time, the pile surface exhibits multi-scaling, where the exponents decrease with increasing moment. This is connected to the fact that the pile is in a self-organized critical state, where the dynamics of the steady state is influenced by transient properties, leading to multi-scaling. In contrast, when studying the transient properties directly, generic scaling is observed, as there is only one relevant cut-off. Similarly in space, multi-scaling is absent and within experimental error, the same scaling is observed for all moments. Again, this is connected to the properties of the critical state.
PACS: 05.65.+b – Self-organized systems / 45.70.-n – Granular systems
© EDP Sciences, 2004
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