文章基本信息

标题：Numerical study of the coupled natural convection with surface radiation in a cylindrical annular enclosure
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作者：Mohamed Amine MEDEBBER ; Abderrahmane AISSA ; Belkacem OULD SAID 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2020
卷号：330
页码：1-4
DOI：10.1051/matecconf/202033001029
语种：English
出版社：EDP Sciences
摘要：The interaction of natural convection with thermal radiation of black surfaces in a cylindrical enclosure filled with air has been numerically investigated. The steady-state continuity, Navier-Stokes and energy equations were discretized using the control volume method and solved numerically via the SIMPLER algorithm. Effects of Rayleigh number (Ra), wall emissivity (εp) and height ratio parameter (X) are studied. The result shows that surface radiation significantly altered the temperature distribution and the flow patterns, especially at higher Rayleigh numbers. The total average Nusselt number has also been discussed for valuating heat transfer through the enclosure.