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ORIGINAL PAPER
Mhd Mixed Convection in Copper-Water Nanofluid Filled Lid-Driven Square Cavity Containing Multiple Adiabatic Obstacles with Discrete Heating
1
Department of Mechanical Engineering, Cleveland State University, Cleveland, Ohio 44115 USA
2
COMSATS Institute of Information Technology, Kamra Road, 43600, Attock, Pakistan
3
Basic and Applied Sciences Department, College of Engineering and Technology, Arab Academy for Science & Technology and Maritime Transport (AASTMT), Aswan Branch, Egypt
4
Department of Mathematics, Aswan University, Faculty of Science, Aswan, 81528, Egypt
Online publication date: 2020-06-05
Publication date: 2020-06-01
International Journal of Applied Mechanics and Engineering 2020;25(2):57-74
KEYWORDS
ABSTRACT
The objective of the present work is to investigate the influence of nanoparticles of copper within the base fluid (water) on magneto-hydrodynamic mixed-convection flow in a square cavity with internal generation. A control finite volume method and SIMPLER algorithm are used in the numerical calculations. The geometry is a lid-driven square cavity with four interior square adiabatic obstacles. A uniform heat source is located in a part of the left wall and a part of the right wall of the enclosure is maintained at cooler temperature while the remaining parts of the two walls are thermally insulated. Both the upper and bottom walls of the cavity are considered to be adiabatic. A comparison with previously published works shows a very good agreement. It is observed that the Richardson number, Ri, significantly alters the behavior of streamlines when increased from 0.1 to 100.0. Also, the heat source position parameter, D, significantly changes the pattern of isotherms and its strength shifted when D moves from 0.3 to 0.7.
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