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
收藏
页码：427 / 433
页数：7
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