Heat Transfer From Thermally Developing
Flow Of Non-Newtonian Fluids In Rectangular
Ducts
Author(s)
B.T.F. Chung & Z.J. Zhang
Abstract
Heat transfer from thermally developing
flow of non-Newtonian fluids in rectangular
ducts
B.T.F. Chung & Z.J. Zhang
Department of Mechanical Engineering,
The University of Akron, Akron,
ABSTRACT
The purpose of this work is to determine numerically the Nusselt number of
hydrodynamically fully developed and thermally developing flow of power law
non-Newtonian fluids in a rectangular duct. Three boundary conditions, namely,
T, HI and H2 are taken into account. The effects of the power law index and
duct aspect ratio on Nusselt number and the thermal entrance length are
investigated. Under certain limiting conditions, the present solutions compare
very well with some numerical results available in the literature.
NOMENCLATURE
a 1/2 duct width
b 1/2 duct height
Dh duct hydraulic diameter, characteristic length
f fanning friction factor, (-dp/dx)(Dj/4)/(puJV2)
h heat transfer coefficient
k fluid thermal conductivity
K parameter in
Keywords
Related Book
Other papers in this volume
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