SURFACE FLUIDIZATION OF A SAND PILE

被引：45

作者：

EVESQUE, P ^{[1
]}

SZMATULA, E ^{[1
]}

DENIS, JP ^{[1
]}

机构：

[1] CTR RECH PONT MOUSSON,F-54704 PONT A MOUSSON,FRANCE

来源：

EUROPHYSICS LETTERS | 1990年 / 12卷 / 07期

关键词：

D O I：

10.1209/0295-5075/12/7/009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the capability exhibited by a vibrated sand pile to creep up into a vessel. Our measures demonstrate that the fluidization of a heap submitted to vertical vibrations of high enough amplitude is confined to an upper layer the thickness of which depends on the amplitude r of the variations of the acceleration to which the pile is submitted. The internal part of the heap remains compacted due to a joint action of the gravity force and of kinetic-energy losses due to either internal friction or grain-grain collisions. © 1990 IOP Publishing Ltd.

引用

页码：623 / 627

页数：5

共 15 条

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