Exact results for the homogeneous cooling state of an inelastic hard-sphere gas

被引:3
|
作者
Brenig, L
Salazar, JM
机构
[1] Free Univ Brussels, Serv Phys Stat Plasmas & Opt Non Lineaire, B-1050 Brussels, Belgium
[2] Univ Bourgogne, Lab REch React Solides, F-21011 Dijon, France
关键词
D O I
10.1017/S0022377898006709
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
The infinite set of moments of the two-particle distribution function is found exactly for the uniform cooling state of a hard-sphere gas with inelastic collisions. Their form shows that velocity correlations cannot be neglected, and consequently the 'molecular chaos' hypothesis leading to the inelastic Boltzmann and Enskog kinetic equations must be questioned.
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页码:639 / 646
页数:8
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