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Hindered settling in non‐newtonian power law liquids
Author(s) -
Chhabra R. P.,
Unnikrishnan A.,
Nair V. R. Unnikrishnan
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.5450700414
Subject(s) - settling , power law , non newtonian fluid , power law fluid , reynolds number , newtonian fluid , mechanics , thermodynamics , materials science , law , physics , mathematics , statistics , turbulence , political science
New experimental results on the hindered settling of model glass bead suspensions in non‐Newtonian suspending media are reported. The data presented encompass the following ranges of variables: 7.38 × 10 −4 ≤ Re 1∞ ≤ 2; 0.0083 ≤ d/D ≤ 0.0703; 0.13 ≤ C ≤ 0.43 and 1 ≥ n ≥ 0.8. In these ranges of conditions, the dependence of the hindered settling velocity on concentration is adequately represented by the corresponding Newtonian expressions available in the literature. The influence of the power law flow behaviour index is completely embodied in the modified definition of the Reynolds number used for power law liquids.