Volume 3, Issue 5, October 2017, Page: 52-61
Exact Solution of an MHD Natural Convection Flow in Vertical Concentric Annulus with Heat Absorption
Yusuf Samuel Taiwo, Department of Mathematics, Ahmadu Bello University, Zaria, Nigeria
Received: Mar. 8, 2017;       Accepted: Mar. 30, 2017;       Published: Nov. 28, 2017
DOI: 10.11648/j.ijfmts.20170305.12      View  1781      Downloads  95
Abstract
This paper presents an exact solution of a fully developed natural convection flow in a vertical concentric annulus in the presence of transverse magnetic field and heat absorption. The non-dimensional form of the equation governing the flow is first obtained and then the unified analytical solutions for the temperature field, velocity field, and skin-frictions as well as rate of heat transfer are obtained for both isothermal and constant heat flux case on the outer surface of the inner cylinder. The effect of various identified governing parameters on the flow was illustrated with the aid of line graphs. It is found that the magnitude of maximum fluid velocity is greater in the case of isothermal heating compared with the constant heat flux case when the gap between the cylinders is less or equal to radius of the inner cylinder. More also, the various values of the non-dimensional heat absorption parameter (H) and the corresponding values of annular gap where these fields are almost the same are presented in table 1.
Keywords
MHD, Natural Convection, Annulus, Heat Absorption, Isothermal, Isoflux
To cite this article
Yusuf Samuel Taiwo, Exact Solution of an MHD Natural Convection Flow in Vertical Concentric Annulus with Heat Absorption, International Journal of Fluid Mechanics & Thermal Sciences. Vol. 3, No. 5, 2017, pp. 52-61. doi: 10.11648/j.ijfmts.20170305.12
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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