Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 50, Issue 3-4, Pages 766-775Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2006.06.019
Keywords
penalty finite element method; natural convection; square cavity; non-uniform heating
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The present numerical study deals with natural convection flow in a closed square cavity when the bottom wall is uniformly heated and vertical wall(s) are linearly heated whereas the top wall is well insulated. Non-linear coupled PDEs governing the flow have been solved by penalty finite element method with bi-quadratic rectangular elements. Numerical results are obtained for various values of Rayleigh number (Ra) (10(3) <= Ra <= 10(5)) and Prandtl number (Pr) (0.7 <= Pr <= 10). Results are presented in the form of streamlines, isotherm contours, local Nusselt number and the average Nusselt as a function of Rayleigh number. (c) 2006 Published by Elsevier Ltd.
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