Numerical study of the heat transfer of two fluid flow in partially heated enclosure

被引：0

作者：

Nader Ben-Cheikh

Nasreddine Ouertatani

Brahim Ben-Beya

Taieb Lili

Antonio Campo

机构：

[1] Campus Universitaire,Département de Physique, Faculté des Sciences de Tunis

[2] The University of Texas at San Antonio,Department of Mechanical Engineering

来源：

Heat and Mass Transfer | 2011年 / 47卷

关键词：

Natural Convection; Rayleigh Number; Vertical Wall; Average Nusselt Number; Total Heat Transfer;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This investigation addresses a systematic numerical method based on the finite volume method and a full multigrid technique to study three-dimensional flow structures and heat transfer rates in partially heated 3D enclosures. The heating occurs with a central heated strip on a large vertical wall and the opposite vertical wall is cooled to a uniform low temperature. The remaining surfaces are thermally insulated. Two different fluids: one air (Pr = 0.7) and the other water (Pr = 6.8) are employed encompassing descriptive Rayleigh numbers Ra bounded by 103 and 107. Typical sets of streamlines and isotherms are presented to analyze the intricate circulatory flow patterns set up by the buoyancy force of the fluids. Monomial correlations are presented for the quantification of the total heat transfer in harmony with the prevalent Rayleigh numbers for the two dissimilar working fluids.

引用

页码：743 / 749

页数：6

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