High energy tail in the velocity distribution of a granular gas

被引:55
作者
Brey, JJ [1 ]
Cubero, D [1 ]
Ruiz-Montero, MJ [1 ]
机构
[1] Univ Sevilla, E-41080 Seville, Spain
来源
PHYSICAL REVIEW E | 1999年 / 59卷 / 01期
关键词
D O I
10.1103/PhysRevE.59.1256
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 Enskog-Boltzmann equation for a homogeneous freely evolving system of smooth hard disks colliding inelastically is solved by means of the direct simulation Monte Carlo method. The distribution function shows an exponential high velocity tail, while it is Gaussian for small velocities. The numerical results are compared with recent predictions of approximate analytical theories and quite good agreement is found. [S1063-651X(99)01601-3].
引用
收藏
页码:1256 / 1258
页数:3
相关论文
共 12 条
[1]  
Bird G. A., 1994, MOL GAS DYNAMICS DIR
[2]  
Bird G.A., 1976, MOL GAS DYNAMICS
[3]   Homogeneous cooling state of a low-density granular flow [J].
Brey, JJ ;
RuizMontero, MJ ;
Cubero, D .
PHYSICAL REVIEW E, 1996, 54 (04) :3664-3671
[4]   Dissipative dynamics for hard spheres [J].
Brey, JJ ;
Dufty, JW ;
Santos, A .
JOURNAL OF STATISTICAL PHYSICS, 1997, 87 (5-6) :1051-1066
[5]  
BREY JJ, 1998, PHYS REV E, V58, P4368
[6]   RAPID GRANULAR FLOWS [J].
CAMPBELL, CS .
ANNUAL REVIEW OF FLUID MECHANICS, 1990, 22 :57-92
[7]   The granular phase diagram [J].
Esipov, SE ;
Poschel, T .
JOURNAL OF STATISTICAL PHYSICS, 1997, 86 (5-6) :1385-1395
[8]   CLUSTERING INSTABILITY IN DISSIPATIVE GASES [J].
GOLDHIRSCH, I ;
ZANETTI, G .
PHYSICAL REVIEW LETTERS, 1993, 70 (11) :1619-1622
[9]   MECHANICS OF COLLISIONAL MOTION OF GRANULAR-MATERIALS .1. GENERAL HYDRODYNAMIC EQUATIONS [J].
GOLDSHTEIN, A ;
SHAPIRO, M .
JOURNAL OF FLUID MECHANICS, 1995, 282 :75-114
[10]  
JENKINS JT, 1985, ARCH RATION MECH AN, V87, P355, DOI 10.1007/BF00250919