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Computational Study of Convective Heat Transfer Flow in a Square Cavity with Heated Vertical Walls and Cooled Horizontal Walls

Olukayode N. E, Afolabi S. I.

Abstract


The subject of natural convection is operative in a variety of environments that cut across natural and industrial application systems. This study investigates numerically convective heat transfer flow in a two-dimensional square cavity heated on both vertical sides and cooled on the horizontal sides.  Temperatures at the hot and cold walls are assumed to be uniform while Prandtl numbers of 0.71 and 10000 are used. The steady state, nonlinear partial differential equations of Navier-Stokes and Energy equations are solved by using Galerkin weighted residual finite element method of solution procedures.  The aim of the study is to determine the influence of Rayleigh numbers and Prandtl effects on flow field and energy transport in the cavity using COMSOL Multiphysics software. The results show that Rayleigh numbers and high Prandtl number drastically influence the convective heat transfer flow in cavities.


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References


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