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An experimental study of non‐newtonian fluid flow through fixed and fluidized beds of non‐spherical particles
Author(s) -
Sharma M. K.,
Chhabra R. P.
Publication year - 1992
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450700324
Subject(s) - sphericity , fluidization , pressure drop , mechanics , reynolds number , non newtonian fluid , newtonian fluid , flow (mathematics) , power law fluid , materials science , mathematics , fluidized bed , physics , thermodynamics , turbulence , geometry
Extensive measurements of pressure drop in fixed beds, minimum fluidization velocity and expansion characteristics for beds of non‐spherical particles are reported in the following ranges of conditions: 10 ‐3 ≤ Re ≤ 20; 0.66 ≤ n ≤ 1 and 0.41 ≤ ϵ ≤ 0.75. Based on an analysis of these results, it is illustrated that the existing frameworks originally developed for Newtonian fluid flow through beds of spherical particles are also satisfactory for power law fluid flow through beds of non‐spherical particles, provided a volume equivalent diameter modified by a sphericity factor and a modified Reynolds number are used instead of their usual definitions.