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Liquid flow over a rotating dip coater
Author(s) -
Nigam K. D. P.,
Esmail M. N.
Publication year - 1980
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.5450580503
Subject(s) - inertia , cylinder , mechanics , galerkin method , flow (mathematics) , capillary action , newtonian fluid , nonlinear system , non newtonian fluid , mathematics , materials science , classical mechanics , physics , geometry , composite material , quantum mechanics
The hydrodynamics of a Newtonian fluid entrained from a stagnant pool by a rotating, partially immersed horizontal cylinder is considered. A numerical solution, based on the Galerkin method of weighted residuals, predicts the film thickness variation over the cylinder surface. The results are compared with experimental measurements and theoretical predictions available in literature. The comparison with the experimental data is good, especially for high capillary numbers. This supports the claim that inertia effects are better depicted in a nonlinear treatment of the problem. The computational procedure applied is not complicated, and may be used for industrial predictions.