Radiative and Free Convective Effects of a MHD Flow Through a Porous Medium Between Infinite Parallel Plates with Time-dependent Suction

The problem of magnetohydrodynamic free-convection flow, with radiative heat transfer in porour media subject to time-dependent suction of an incompressible and optically transparent medium has been solved making fairly realistic assumption. For a small-time-dependent perturbation of the fluid veloc...

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Bibliographic Details
Published inAstrophysics and space science Vol. 260; no. 4; pp. 455 - 468
Main Authors Alagoa, K.D., Tay, G., Abbey, T.M.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.01.1998
Subjects
Astrophysics
Convection
Heat transfer
Porosity
Porous media
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Summary:The problem of magnetohydrodynamic free-convection flow, with radiative heat transfer in porour media subject to time-dependent suction of an incompressible and optically transparent medium has been solved making fairly realistic assumption. For a small-time-dependent perturbation of the fluid velocity and temperatures, the nonlinear problem is tackled by asymptotic approximation, giving solutions for steady-flow on which a first-order transient component is superimposed. The effect of heat radiation and free convection on the flow of the fluid is demonstrated analytically and quantitatively. The flow field is seen to be affected mainly by radiation and convection parameters, in addition to the porosity and magnetic factors.[PUBLICATION ABSTRACT]
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ISSN:0004-640X
1572-946X
DOI:10.1023/A:1001736406928