Conjugate Heat Transfer in Closed Cavity with Porous Blocks

علوم کاربردی و محاسباتی در مکانیک

Article 9, Volume 29, Issue 1 - Serial Number 17, May 2017, Pages 111-121   

Document Type: مقاله کوتاه

DOI: 10.22067/fum-mech.v29i1.51189

Authors

Mohsen Nazari^{* 1}; H Gerivani²; S. Tafakkor³

¹University of Shahrood

²Univ of Shahrood

³Shahrood

Abstract

In this paper, free convection heat transfer is completely analyzed in a closed cavity containing internal conducting blocks with arbitrary arrangement. Free convection heat transfer in the cavity is studied according to the variations of Rayleigh number, number of conducting blocks, arrangements of blocks and the porosity. The overall Nusselt number as a criterion of heat transfer is reported on the walls of the cavity. The obtained results show that the thermal effects of porosity and the arrangements of blocks in the cavity are less than the effects of Rayleigh number. However, increasing the number of blocks inside the cavity leads to a decrease in the overall Nusselt number.

Keywords

porosity; Conjugate heat transfer; Porous cavity

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