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Heat and mass transfer in non‐newtonian fluid flow with power function velocity profiles
Author(s) -
Kawase Y.,
Ulbrecht J. J.
Publication year - 1983
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.5450610604
Subject(s) - laminar flow , mechanics , boundary layer , churchill–bernstein equation , non newtonian fluid , turbulence , mass transfer , newtonian fluid , drag , laminar sublayer , heat transfer , plug flow , thermodynamics , power law fluid , laminar flow reactor , parasitic drag , fluid dynamics , classical mechanics , physics , flow separation , reynolds number , open channel flow , nusselt number
Heat and mass transfer in laminar and turbulent non‐Newtonian fluids is investigated in this work using the power function velocity profiles. Analytical solutions are presented for cases of mass transfer in laminar non‐Newtonian fluid flows, namely for a flat velocity profile (plug flow), for the case of a constant velocity gradient at the solid boundary (Couette flow), and for the velocity distribution within a laminar boundary layer on a flat plate, and these are illustrated by rotating disks and cylinders in laminar Ostwald‐de Waele fluids. Further, turbulent mass transfer processes (tubular flow, rotating disk, and rotating cylinder) in non‐Newtonian fluids (Ostwald‐de Waele fluid and drag‐reducing fluid) at low and large Schmidt numbers are also discussed using the solutions of mass transfer in flows with power function velocity profiles. Reasonable agreement is found between the predictions of this work and the available experimental data and correlations.