Heat and mass transfer by non-Darcy free convection from a vertical cylinder embedded in porous media with a temperature-dependent viscosity

Purpose - The purpose of this paper is to consider heat and mass transfer by natural convection from a vertical cylinder in porous media for a temperature-dependent fluid viscosity in the presence of radiation and chemical reaction effects.Design methodology approach - The governing equations are tr...

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Bibliographic Details
Published in:International journal of numerical methods for heat & fluid flow 2011-01, Vol.21 (7), p.847-863
Main Authors: Chamkha, A.J, EL-Kabeir, S.M.M, Rashad, A.M
Format: Article
Language:English
Subjects:
Approximation
Chemical reactions
Computational fluid dynamics
Convection
Cylinders
Differential equations
Diffusion
Endangered & extinct species
Fluid flow
Heat transfer
Investigations
Mass transfer
Mathematical analysis
Ordinary differential equations
Permeability
Porous media
Radiation
Rayleigh number
Studies
Viscosity
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Summary:Purpose - The purpose of this paper is to consider heat and mass transfer by natural convection from a vertical cylinder in porous media for a temperature-dependent fluid viscosity in the presence of radiation and chemical reaction effects.Design methodology approach - The governing equations are transformed into non-similar differential equations and then solved numerically by an efficient finite-difference method.Findings - It is found that there are significant effects on the heat and mass transfer characteristics of the problem due to the variation of viscosity and radiation and chemical reaction effects.Originality value - The paper combines the effects of radiation, chemical reaction, non-Darcy porous media effects along with the variation of viscosity with temperature.
ISSN:0961-5539
1758-6585
DOI:10.1108/09615531111162828