Analytical Modeling of Natural Convection in a Tall Rectangular Enclosure with Multiple Disconnected Partitions

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• 作者：Youngmin Bae ; ^{ybae@kaeri.re.kr" class="auth_mail" title="E-mail the corresponding author} ; Seong Hoon Kim ; Jae-Kwang Seo ; Young In Kim
• 关键词：Buoyancy-Driven Flow ; Natural Convection ; Partitioned Enclosure
• 刊名：Nuclear Engineering and Technology
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：48
• 期：4
• 页码：925-931
• 全文大小：886 K

文摘

In this study, laminar natural circulation and heat transfer in a tall rectangular enclosure with disconnected vertical partitions inside were investigated. Analytical expressions were developed to predict the circulation flow rate and the average Nusselt number in a partially partitioned enclosure with isothermal side walls at different temperatures and insulated top and bottom walls. The proposed formulas are then validated against numerical results for modified Rayleigh numbers of up to 10⁶. The impacts of the governing parameters are also examined along with a discussion of the heat transfer regimes.