Evolution of a step in a granular material: the Sinai problem

被引:14
作者
Boutreux, T
deGennes, PG
机构
来源
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE PHYSIQUE CHIMIE ASTRONOMIE | 1997年 / 325卷 / 02期
关键词
granular material; avalanche; angle of repose;
D O I
10.1016/S1251-8069(97)83250-2
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A step of height h(o) and initial angle theta(i) (larger than the angle of repose theta(r)) spreads through an avalanche, and terminates at a certain final angle theta(f). We analyse this, using a crude version of the BCRE equations (Bouchaud et al., 1994) for surface flows. We find a rapid spreading, and a final angle theta(f) smaller than theta(r).
引用
收藏
页码:85 / 89
页数:5
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