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Heat transfer to non‐Newtonian fluids in transitional and turbulent flow
Author(s) -
Petersen A. W.,
Christiansen E. B.
Publication year - 1966
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690120205
Subject(s) - turbulence , laminar flow , newtonian fluid , non newtonian fluid , thermodynamics , mechanics , churchill–bernstein equation , flow (mathematics) , prandtl number , heat transfer , physics , reynolds number , nusselt number
Abstract Turbulent and transitional flow heat transfer correlations for non‐Newtonian fluids are presented. By means of an extension of the Reichardt‐Metzner‐Friend correlation to nonisothermal flow, and a new definition of Prandtl number to account for deviations from Newtonian behavior, turbulent flow data are correlated to a standard deviation of 14.8%. By means of a normalizing procedure, data for the complex case of transitional flow heat transfer to non‐Newtonian fluids are correlated to a standard deviation of 17.7%. At the transition region boundaries, the correlation is consistent with laminar and turbulent flow correlations. A basic similarity in the Newtonian and non‐Newtonian heat transfer mechanisms is suggested.