Article ID Journal Published Year Pages File Type
650093 China Particuology 2007 9 Pages PDF
Abstract

Magnetically stabilized beds are packed beds subjected to fluid-driven deformation and controlled by magnetically induced interparticle forces. This paper deals with magnetically stabilized beds as deformable porous media and describes their application in dust filtration. The Richardson–Zaki scaling law, U/Ut=εnU/Ut=εn describes the field controlled bed expansion via the exponent n  , that yields a porosity-dependent flow length scale dc=dpεndc=dpεn. The paper addresses two issues: (i) deformation characteristics by assuming homogeneous bed expansion and a definition of bed variable flow length scale; (ii) dust filtration characteristics such as filter coefficient, specific deposit and filtration efficiency expressed in terms of the variable flow length scale and illustrated by experimental data.

Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
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