SHEAR-INDUCED RESUSPENSION IN A COUETTE DEVICE

被引:82
作者
ACRIVOS, A [1 ]
MAURI, R [1 ]
FAN, X [1 ]
机构
[1] CUNY CITY COLL,DEPT MECH ENGN,NEW YORK,NY 10031
关键词
RESUSPENSION; SUSPENSIONS;
D O I
10.1016/0301-9322(93)90043-T
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The viscous resuspension of an initially settled bed of particles resulting from the application of a laminar shear flow was studied experimentally in a narrow-gap Couette device. The measured height of the resuspended layer was found to be in excellent agreement with that predicted theoretically using a model developed by Leighton & Acrivos, in which the downward gravitational particle flux is balanced by a corresponding upward flux due to shear-induced particle diffusion.
引用
收藏
页码:797 / 802
页数:6
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