Self-organized criticality in a two-dimensional rotating drum model

被引:13
作者
Baumann, G
Wolf, DE
机构
[1] Theoretical Physics FB 10, Gerhard-Mercator-University, Duisburg
关键词
D O I
10.1103/PhysRevE.54.R4504
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
For a model of a slowly rotating two-dimensional drum the statistics of the potential energy dissipation in avalanches is studied. Self-organized criticality occurs only for the small disks in bidisperse fillings. The large disks in bidisperse fillings as well as monodisperse fillings show a stretched exponential distribution. This is due to the absence of niches on the surface which are able to trap these disks.
引用
收藏
页码:R4504 / R4507
页数:4
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