Laminar Mixed Convection Flow In The
Entrance Region Of Uniformly Heated
Inclined Circular Tubes
Author(s)
J. Orfi, N. Galanis & C.T. Nguyen
Abstract
Laminar mixed convection flow in the
entrance region of uniformly heated
inclined circular tubes
J. OrG," N. Galanis" & C.T. Nguyen^
"Departement de genie mecanique, Universite de
^Ecole de genie, Universite de Moncton, Moncton,
New Brunswick, Canada, ElA 3E9
ABSTRACT
The effect of natural convection on the developing laminar flow in
uniformly heated inclined tubes has been investigated. Results for air
flowing in 60° inclined tube with Gr = 10* show that the flow and
thermal field are not axisymmetrical and are drastically different from
those for pure forced convection. The phenomenon of bifurcation has
also been studied for the fully-developed flow. Dual solutions
showing"two vortices" and "four vortices" flow structures as well as the
flow regime map as a function of the tube inclination are presented.
INTRODUCTION
Laminar mixed convection in a circular tube has been extensively
studied both analytically (Morton [1], Iqbal and Stachiewicz [2],
Patan
Keywords
Related Book
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