Rolling friction in the dynamic simulation of sandpile formation

被引：592

作者：

Zhou, YC ^{[1
]}

Wright, BD ^{[1
]}

Yang, RY ^{[1
]}

Xu, BH ^{[1
]}

Yu, AB ^{[1
]}

机构：

[1] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 1999年 / 269卷 / 2-4期

基金：

澳大利亚研究理事会;

关键词：

static sandpiles; granular compaction; dynamics and kinematics of a particle and a system of particles; granular flow; mixing; segregation and stratification; granular systems;

D O I：

10.1016/S0378-4371(99)00183-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The contact between spheres results in a rolling resistance due to elastic hysteresis losses or viscous dissipation. This resistance is shown to be important in the three-dimensional dynamic simulation of the formation of a heap of spheres. The implementation of a rolling friction model can avoid arbitrary treatments or unnecessary assumptions, and its validity is confirmed by the good agreement between the simulated and experimental results under comparable conditions. Numerical results suggest that the angle of repose increases significantly with the rolling friction coefficient and decreases with particle size. (C) All Elsevier Science B.V. All rights reserved.

引用

页码：536 / 553

页数：18

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