The particle-in-a-tube analogy for a multiparticle suspension

R. Di Felice

doi:10.1016/0301-9322(96)00005-5

The particle-in-a-tube analogy for a multiparticle suspension

R. Di Felice

School of Engineering and Digital Sciences

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

A simple analogy between a multiparticle suspension and a single particle in a tube has been obtained by using the concept of "hydraulic diameter". Fully theoretical derivations for the effect of the wall on the single particle enable the solid-fluid interaction force to be estimated with no empirical input for the viscous and the inertial flow regimes. The analogy is successfully tested in the intermediate flow regime and finally the expansion characteristics of homogeneous fluidised beds is obtained, in good agreement with the Richardson & Zaki (1954) equation, by using experimental data on the terminal settling velocity of a lone particle in a tube.

Original language	English
Pages (from-to)	515-525
Number of pages	11
Journal	International Journal of Multiphase Flow
Volume	22
Issue number	3
DOIs	https://doi.org/10.1016/0301-9322(96)00005-5
Publication status	Published - Jun 1996

Keywords

Drag force
Multiparticle systems
Voidage function
Wall function

ASJC Scopus subject areas

Mechanical Engineering
Physics and Astronomy(all)
Fluid Flow and Transfer Processes

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AB - A simple analogy between a multiparticle suspension and a single particle in a tube has been obtained by using the concept of "hydraulic diameter". Fully theoretical derivations for the effect of the wall on the single particle enable the solid-fluid interaction force to be estimated with no empirical input for the viscous and the inertial flow regimes. The analogy is successfully tested in the intermediate flow regime and finally the expansion characteristics of homogeneous fluidised beds is obtained, in good agreement with the Richardson & Zaki (1954) equation, by using experimental data on the terminal settling velocity of a lone particle in a tube.

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