Natural convection from a horizontal permeable surface in a porous medium - numerical and asymptotic solutions |
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| Authors: | M. A. Chaudhary J. H. Merkin I. Pop |
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| Affiliation: | (1) Present address: Department of Applied Mathematics, University of Leeds, LS2 9JT Leeds, UK;(2) Faculty of Mathematics, University of Cluj, CP 253 Cluj, Romania |
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| Abstract: | The equations which govern the similarity solution for free convection boundary-layer flow above a permeable, horizontal surface in a fluid-saturated porous medium are considered. These are seen to depend on the dimensionless parameters  and m measuring mass transport rate and the wall temperature variation, respectively. Numerical solutions are presented for a wide range of values of and m. Asymptotic solutions are obtained for ¦¦ large (for both fluid injection, > 0, and fluid withdrawal, < 0) and for m large. These are compared with the numerical solutions. |
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| Keywords: | convection boundary layer permeable surface similarity solutions |
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