ON THE THERMODYNAMICS OF GRANULAR MEDIA

被引：31

作者：

HERRMANN, HJ ^{[1
]}

机构：

[1] CEA,SPHT,CNRS,SACLAY,FRANCE

来源：

JOURNAL DE PHYSIQUE II | 1993年 / 3卷 / 04期

关键词：

D O I：

10.1051/jp2:1993141

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A thermodynamic formulation for moving granular material is proposed. The fluctuations due to the constant flux and dissipation of energy are controlled in a ''granular'' ensemble by a pressure rho (''compression'') which is conjugate to a contact volume (''contactopy''). The corresponding response function (''dissipativity'') describes how dissipation increases with rho and should serve to identify the fluidization transition and 1/f noise. In the granular ensemble one can consider the granular medium as a gas of elastically colliding particles and define a ''granular'' temperature and other standard thermodynamic quantities.

引用

页码：427 / 433

页数：7

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