NUMERICAL STUDY OF HIGH RAYLEIGH NUMBER CONVECTION IN A VERTICAL POROUS ENCLOSURE
- 1 April 1983
- journal article
- research article
- Published by Taylor & Francis in Numerical Heat Transfer
- Vol. 6 (2) , 223-234
- https://doi.org/10.1080/01495728308963084
Abstract
The results of a numerical simulation of natural convection in a vertical rectangular porous enclosure subjected to a horizontal temperature differential are presented. By use of the stable exponential differencing computation scheme, values of the Darcy-Rayleigh number R have been obtained which are substantially larger than those in previous numerical studies. The present results provide a clear physical picture of the development process as R is increased toward asymptotically high values (R →). Correlations for the heat transfer rate are presented for four different aspect ratios and are compared with earlier experimental and theoretical results.Keywords
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