Title

Natural convection heat transfer of a viscous fluid in a vertical porous channel

Authors

Authors

F. T. Akyildiz; D. A. Siginer; K. Vajravelu;R. A. Van Gorder

Comments

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Abbreviated Journal Title

J. Eng. Math.

Keywords

Degree theory; Galerkin-Legendre Spectral Method; Green's functions; Newtonian fluid; MIXED CONVECTION; DISSIPATION; FLOW; Engineering, Multidisciplinary; Mathematics, Interdisciplinary; Applications

Abstract

Approximate analytic solutions to second-order nonlinear systems arising in natural convection flow and heat transfer in vertical porous channels are obtained via the Galerkin-Legendre Spectral Method. Furthermore, existence, uniqueness, and concavity results are established using Green's functions and degree theory. We find that an increase in either the Darcy number or the quadratic density temperature variation results in an increase in the velocity and the temperature of a Newtonian fluid. Finally, parametric zones for the occurrence of reverse flow are considered, and the resulting influences on the obtained approximate solutions are analyzed.

Journal Title

Journal of Engineering Mathematics

Volume

74

Issue/Number

1

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

61

Last Page

71

WOS Identifier

WOS:000304104400006

ISSN

0022-0833

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