Numerical Study of Laminar Free Convection Heat Transfer Inside a Curvy Porous Cavity Heated From Below
Engineering Science
Volume 2, Issue 1, March 2017, Pages: 14-25
Received: Feb. 20, 2017; Accepted: Feb. 27, 2017; Published: Mar. 24, 2017
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Authors
Ali Maseer Gati'a, Mechanical Department/Engineering College, Wasit University, Wasit, Iraq
Zena Khalifa Kadhim, Mechanical Department/Engineering College, Wasit University, Wasit, Iraq
Ahmad Kadhim Al-Shara, Mechanical Department/Engineering College, Misan University, Misan, Iraq
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Abstract
A numerical investigation is performed in the present study by using of ANSYS-CFX R15.0 for a laminar free convection heat transfer inside a closed curvy porous cavity heated from below by using of Darcy-Forchheimer model with neglecting the viscous dissipation. The porous combination is a saturated silica-sand by water. The graphical parameters which have been tested here are involving (waving the cavity side walls in a sinusoidal shape, the phase angle, and the aspect ratio). The most important conclusion in this research is that the sinusoidal curviness of the cavity's walls is not help to rise the rate of heat transfer, but in contrary it decreases this rate except when the number of waves per cavity's height is equal to one (i.e. N=1), where it is found that this value enhances the heat transfer rate inside the cavity especially when the dimensionless amount of the wave's amplitude be equal to (0.075).
Keywords
Free Convection, Curvy Cavity, Porous Medium, Darcy-Forchheimer Model, Sand-Silica, ANSYS-CFX R15.0
To cite this article
Ali Maseer Gati'a, Zena Khalifa Kadhim, Ahmad Kadhim Al-Shara, Numerical Study of Laminar Free Convection Heat Transfer Inside a Curvy Porous Cavity Heated From Below, Engineering Science. Vol. 2, No. 1, 2017, pp. 14-25. doi: 10.11648/j.es.20170201.13
Copyright
Copyright © 2017 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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