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A Simple quasi‐steady analysis of turbulent flow freezing transients and comparison with experiments
Author(s) -
Thomason S. B.,
Mulligan J. C.,
Hill J. M.
Publication year - 1989
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.5450670304
Subject(s) - mechanics , turbulence , heat transfer , tube (container) , thermodynamics , pressure drop , flow (mathematics) , materials science , physics , composite material
A simple quasi‐steady analysis is developed to predict transient heat transfer and pressure drop as an internal turbulent flow freezes when tube‐wall temperature is suddenly lowered. Heat transfer correlations by Sparrow‐Hallman‐Siegel and Kays, and the Blasius friction relation are modified for this analysis. Experimental data are compared and reasonable agreement exists when relatively uniform tube‐wall temperatures existed in the experimental apparatus; and indications are that the ice was of minimal thickness under those conditions. Analytical predictions did not agree well with experiments when the tube‐wall temperatures in the apparatus exhibited significant nonuniformity, or when thick frozen shells existed.