Influence of Insulated Rectangular Block on Natural Convection Heat Transfer within Porous Enclosure

Abstract:

Numerical study has been performed to investigate the influence of rectangular block on mean Nusselt number of hot wall in a square cavity of porous media. Top and bottom walls are insulated and the right and left walls are cold and hot, respectively, at constant temperature which are heated differentially assuaging a steady condition. 4 distinct cases are introduced regarding the block position: The block at the bottom/top edge with variable distance from the hot wall and the block at the middle edge of bottom/top with variable height. Mean Nusselt numbers are normalized with the simple case of no insulated block. Results show a significant dependence of mean Nusselt on the block position. It also affects the dimensionless time to reach a steady status..

• Periodical: Applied Mechanics and Materials (Volume 390)
• Pages: 660-664
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.390.660
• Online since: August 2013
• Authors: Ali Hooshyar Faghiri, Hikmet Şeli Aybar, Fuat Egelioglu
• Keywords: Insulated Block, Nusselt Number, Porous Enclosure, Unsteady Natural Convection

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