Free volume distributions and compactivity measurement in a bidimensional granular packing

被引：57

作者：

Lechenault, F. ^{[1
]}

da Cruz, F.

Dauchot, O.

Bertin, E.

机构：

[1] CEA, F-91191 Gif Sur Yvette, France

[2] Univ Geneva, Dept Theoret Phys, CH-1211 Geneva 4, Switzerland

来源：

JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT | 2006年

关键词：

granular matter; coarse-graining (experiment); sandpile models (experiment);

D O I：

10.1088/1742-5468/2006/07/P07009

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

We investigate experimentally the distribution of the free volume inside a bidimensional granular packing associated either with single grains or with clusters of grains. This is done for two different types of grains and two levels of compaction. The logarithm of the free volume distribution scales in a non-extensive way with the cluster size for cluster sizes up to a few hundred grains. Having factorized this size dependence, we characterize the distributions by two intensive parameters. We discuss the interpretation of these parameters and their possible relation to Edwards' compactivity.

引用

页数：16

共 33 条

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