Avalanches at rough surfaces

被引:9
作者
Barker, GC
Mehta, A
机构
[1] Inst Food Res, Norwich NR4 7UA, Norfolk, England
[2] SN Bose Natl Ctr Basic Sci, Calcutta 700091, W Bengal, India
关键词
D O I
10.1103/PhysRevE.61.6765
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
We describe the surface properties of a simple lattice model of a sandpile that includes evolving structural disorder. We present a dynamical scaling hypothesis for generic sandpile automats and, additionally, explore the kinetic roughening of the sandpile surface, indicating its relationship with the sandpile evolution. Finally, we comment on the surprisingly good agreement found between this model, and a previous continuum model of sandpile dynamics, from the viewpoint of critical phenomena.
引用
收藏
页码:6765 / 6772
页数:8
相关论文
共 25 条
[1]   SELF-ORGANIZED CRITICALITY [J].
BAK, P ;
TANG, C ;
WIESENFELD, K .
PHYSICAL REVIEW A, 1988, 38 (01) :364-374
[2]   Rotated sandpiles: The role of grain reorganization and inertia [J].
Barker, GC ;
Mehta, A .
PHYSICAL REVIEW E, 1996, 53 (06) :5704-5713
[3]  
BARKER GC, IN PRESS PHYSICA A
[4]   Smoothing of sandpile surfaces after intermittent and continuous avalanches: Three models in search of an experiment [J].
Biswas, P ;
Majumdar, A ;
Mehta, A .
PHYSICAL REVIEW E, 1998, 58 (02) :1266-1285
[5]   Two types of avalanche behaviour in granular media [J].
Daerr, A ;
Douady, S .
NATURE, 1999, 399 (6733) :241-243
[6]   Avalanche dynamics in a pile of rice [J].
Frette, V ;
Christensen, K ;
MaltheSorenssen, A ;
Feder, J ;
Jossang, T ;
Meakin, P .
NATURE, 1996, 379 (6560) :49-52
[7]   EXPERIMENTAL-STUDY OF CRITICAL-MASS FLUCTUATIONS IN AN EVOLVING SANDPILE [J].
HELD, GA ;
SOLINA, DH ;
KEANE, DT ;
HAAG, WJ ;
HORN, PM ;
GRINSTEIN, G .
PHYSICAL REVIEW LETTERS, 1990, 65 (09) :1120-1123
[8]   AVALANCHES, HYDRODYNAMICS, AND DISCHARGE EVENTS IN MODELS OF SANDPILES [J].
HWA, T ;
KARDAR, M .
PHYSICAL REVIEW A, 1992, 45 (10) :7002-7023
[9]   RELAXATION AT THE ANGLE OF REPOSE [J].
JAEGER, HM ;
LIU, CH ;
NAGEL, SR .
PHYSICAL REVIEW LETTERS, 1989, 62 (01) :40-43
[10]   Granular solids, liquids, and gases [J].
Jaeger, HM ;
Nagel, SR ;
Behringer, RP .
REVIEWS OF MODERN PHYSICS, 1996, 68 (04) :1259-1273