A comparative study of mixed convection and its effect on partially active thermal zones in a two sided lid-driven cavity filled with nanofluid

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• 作者：Sumit Malik ; A.K. Nayak ; ^{ameeyakumar@gmail.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Mixed convection ; Nanofluid ; Lid-driven cavity ; Flow and heat transfer ; Finite volume method ; SIMPLE algorithm
• 刊名：Engineering Science and Technology,an International Journal
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：19
• 期：3
• 页码：1283-1298
• 全文大小：2558 K

文摘

In the present study, a two sided lid-driven mixed convection nanofluid flow with discrete heat sources have been numerically investigated. A two dimensional computational visualization technique is used to study the flow behavior using four different cases; depending on the direction of moving vertical walls with fixed upper and lower walls. Two discrete heat sources of equal lengths are taken on the lower wall and the rest of it is kept insulated. The other walls are kept at constant low temperature. The effect of flow governing parameters such as Reynolds number 1⩽Re⩽100, Richardson number 0.1⩽Ri⩽10 and solid volume fraction 0.0⩽ϕ⩽0.2 with Prandtl number 4d522eb45e13d20c73671ac303f53" title="Click to view the MathML source">Pr=6.2 is studied to understand the fluid flow pattern and the heat transfer effect using isotherms and average Nusselt number.