MHD Mixed Convection Flow in a Lid Driven Enclosure with a Sinusoidal Wavy Wall and a Heated Circular Body
International Journal of Fluid Mechanics & Thermal Sciences
Volume 5, Issue 4, December 2019, Pages: 102-110
Received: Aug. 19, 2019; Accepted: Oct. 28, 2019; Published: Nov. 6, 2019
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Authors
Kakali Chowdhury, Department of Electrical & Computer Engineering, Presidency University, Dhaka, Bangladesh
Abdul Alim, Department of Mathematics, Bangladesh University of Engineering & Technology, Dhaka, Bangladesh
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Abstract
MHD mixed convection flow in a lid driven enclosure with a sinusoidal wavy wall and heated circular body located at the center of the enclosure is studied numerically using finite element analysis. The upper wall is moving with a uniform velocity by unity, and other walls are in no slip condition. The enclosure vertical walls are insulated while the heated circular body inside the enclosure is maintained at a uniform temperature higher than the upper wall and lower wavy surface. Calculations are carried out through solving governing equations for different parameters by using finite element method. The investigation is conducted for various values of Richardson number Ri and Prandtl number Pr. The heat transfer characteristics and flow pattern inside the enclosure are presented in the form of streamlines and isothermal contours. Heat transfer rate in terms of the average Nusselt number and average fluid temperature inside the enclosure are presented for different parameters. The results indicate that the average Nusselt number at the heated surface and average temperature of the fluid inside the enclosure are strongly dependent on the configuration of the system under different geometrical and physical conditions.
Keywords
MHD Mixed Convection, Finite Element Method, Square Enclosure, Circular Heated Body
To cite this article
Kakali Chowdhury, Abdul Alim, MHD Mixed Convection Flow in a Lid Driven Enclosure with a Sinusoidal Wavy Wall and a Heated Circular Body, International Journal of Fluid Mechanics & Thermal Sciences. Vol. 5, No. 4, 2019, pp. 102-110. doi: 10.11648/j.ijfmts.20190504.13
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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