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Shear-induced resuspension in a couette device

Authors
Journal
International Journal of Multiphase Flow
0301-9322
Publisher
Elsevier
Publication Date
Volume
19
Issue
5
Identifiers
DOI: 10.1016/0301-9322(93)90043-t
Keywords
  • Resuspension
  • Suspensions

Abstract

Abstract 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.

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