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Natural convection of CuO–water nanofluid filled in a partially heated corrugated cavity: KKL model approach
Communications in Theoretical Physics ( IF 3.1 ) Pub Date : 2020-07-19 , DOI: 10.1088/1572-9494/ab8a2d
Rizwan Ul Haq 1 , Muhammad Usman 2, 3 , Ebrahem A Algehyne 3, 4
Affiliation  

In this article, flow and heat transfer inside a corrugated cavity is analyzed for natural convection with a heated inner obstacle. Thermal performance is analyzed for CuO–water inside a partially heated domain by defining the constraint along the boundaries. For nanofluid analysis, the Koo and Kleinstreuer Li (KKL) model is implemented to deal with the effective thermal conductivity and viscosity. A heated thin rod is placed inside the corrugated cavity and the bottom portion of the corrugated cavity is partially heated. The dimensionless form of nonlinear partial differential equations are obtained through the compatible transformation along with the boundary constraint. The finite element method is executed to acquire the numerical solution of the obtained dimensional system. Streamlines, isotherms and heat transfers are analyzed for the flow field and temperature distribution. The Nusselt number is calculated at the surface of the partially heated domain for various numerica...

中文翻译:

填充在部分加热的波纹腔中的CuO-水纳米流体的自然对流:KKL模型方法

在本文中,分析了波纹腔内部的流动和传热,以了解内部加热对流时自然对流的情况。通过定义沿边界的约束,可以分析部分加热区域内的CuO-水的热性能。对于纳米流体分析,使用Koo和Kleinstreuer Li(KKL)模型来处理有效的热导率和粘度。将加热的细杆放置在波纹腔内部,并且将波纹腔的底部部分加热。通过相容变换以及边界约束,获得了非线性偏微分方程的无量纲形式。执行有限元方法以获取所获得的尺寸系统的数值解。精简,等温线和传热分析的流场和温度分布。对于各种数值,Nusselt数是在部分加热区域的表面上计算的。
更新日期:2020-07-20
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