標題: Effects of a random porosity model on double diffusive natural convection in a porous medium enclosure
作者: Fu, WS
Ke, WW
機械工程學系
Department of Mechanical Engineering
公開日期: 1-一月-2000
摘要: A double diffusive natural convection in a rectangular enclosure filled with porous medium is investigated numerically. The distribution of porosity is based upon the random porosity model The Darcy-Brinkman-Forchheimer model is used and the factors of heat flux, mean porosity and standard deviation are taken into consideration. The SIMPLEC method with iterative processes is adopted to solve the governing equations. The effects of the random porosity model on the distributions of local Nusselt number are remarkable and the variations of the local Nusselt number become disordered. The contribution of latent heat transfer to the total heat transfer of the high Rayleigh number is larger than that of the low Rayleigh number and the variations of the latent heat transfer are not in order. (C) 2000 Elsevier Science Ltd.
URI: http://dx.doi.org/10.1016/S0735-1933(00)00090-7
http://hdl.handle.net/11536/30834
ISSN: 0735-1933
DOI: 10.1016/S0735-1933(00)00090-7
期刊: INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
Volume: 27
Issue: 1
起始頁: 119
結束頁: 132
顯示於類別:期刊論文


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