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Effect of heat generation on mixed convection in porous cavity with sinusoidal heated moving lid and uniformly heated or cooled bottom walls
Authors:Alblawi  Adel  Zainuddin  N.  Roslan  R.  Rahimi-Gorji  Mohammad  Bakar  N. A.  Do  Hoang-Thinh
Affiliation:1.Mechanical Engineering Department, College of Engineering, Shaqra University, P.O. 11911, Dawadmi, Riyadh, Saudi Arabia
;2.Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia, Batu Pahat, 86400, Johor, Malaysia
;3.Faculty of Medicine and Health Science, Ghent University, 9000, Ghent, Belgium
;4.Division of Computational Mechatronics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
;5.Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam
;
Abstract:

Effect of heat generation and absorption on mixed convection flows in a sinusoidal heated lid-driven square cavity filled with a porous medium is investigated numerically. Both the vertical walls of the enclosure are insulated while the bottom wall is uniformly heated or cooled. The top wall is moving at a constant speed and is heated sinusoidally. The governing equations and boundary conditions are non-dimensionalized and solved numerically by using finite volume method approach along with SIMPLE algorithm together with non-uniform grid system. The effect of Darcy and heat generation parameters are investigated in terms of the flow, heat transfer, and Nusselt number. The results for stream function and isotherm are plotted and it is found that there have significant influence with the presence of heat generation and porous medium.

Keywords:
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