Natural convection from a plane vertical porous surface in non-isothermal surroundings

Saha, Suvash C., Akhter, C., & Hossain, M. A. (2004) Natural convection from a plane vertical porous surface in non-isothermal surroundings. Nonlinear Analysis, 9(2), pp. 151-170.

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In this paper, laminar natural convection flow from a permeable and isothermal vertical surface placed in non-isothermal surroundings is considered. Introducing appropriate transformations into the boundary layer equations governing the flow derives non-similar boundary layer equations. Results of both the analytical and numerical solutions are then presented in the form of skin-friction and Nusselt number. Numerical solutions of the transformed non-similar boundary layer equations are obtained by three distinct solution methods, (i) the perturbation solutions for small � (ii) the asymptotic solution for large � (iii) the implicit finite difference method for all � where � is the transpiration parameter. Perturbation solutions for small and large values of � are compared with the finite difference solutions for different values of pertinent parameters, namely, the Prandtl number Pr, and the ambient temperature gradient n.

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ID Code: 44119
Item Type: Journal Article
Refereed: Yes
Keywords: porous surface, non-isothermal surroundings, body force, natural convection
ISSN: 1392-5113
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > APPLIED MATHEMATICS (010200)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2001 Lietuvos Moklsu Akademija
Deposited On: 22 Aug 2011 00:24
Last Modified: 24 Aug 2011 10:49

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