Free convection above a heated horizontal circular disk |
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Authors: | J. H. Merkin |
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Affiliation: | 1. Dept. of Applied Mathematical Studies, University of Leeds, LS2 9JT, Leeds, England
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Abstract: | The free convection boundary layer flow above a heated horizontal disk is considered. The equations of motion are solved numerically starting at the circumference of the disk where the flow is basically the same as that above a flat plate. The importance of the curvature effects increases as the centre is approached. It is shown that near the centre, the boundary-layer thickness is very large, and that the flow splits up into two distinct regions. There is a thin viscous region next to the disk of thickness ofO(r 2/3), wherer measures distance from the centre and a thick outer inviscid region of thickness ofO(r ?2/3). |
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