THERMAL SCIENCE

International Scientific Journal

INFLUENCE OF ELECTRICAL-CONDUCTIVITY OF WALLS ON MAGNETOHYDRODYNAMIC FLOW AND HEAT TRANSFER OF MICROPOLAR FLUID

ABSTRACT
In this paper, flow and heat transfer in a horizontal channel with isothermal walls has been investigated. The upper and lower plate have been kept at the two constant different temperatures, micropolar fluid is electrically conducting, while the channel plates have arbitrary electrical-conductivity. Applied magnetic field is perpendicular to the flow and the full MHD model is investigated. The general equations that describe the discussed problem under the adopted assumptions are reduced to ODE and closed-form solutions are obtained. The profiles of velocity, microrotation, induced magnetic and temperature fields in function of electrical-conductivity and the coupling parameter and the spin-gradient viscosity parameter together with electrical-conductivity, are graphically shown and discussed. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR 35016: Research of MHD flow in the channels, around the bodies and application in the development of the MHD pump]
KEYWORDS
PAPER SUBMITTED: 2018-03-23
PAPER REVISED: 2018-07-06
PAPER ACCEPTED: 2018-07-10
PUBLISHED ONLINE: 2019-01-19
DOI REFERENCE: https://doi.org/10.2298/TSCI18S5591K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Supplement 5, PAGES [S1591 - S1600]
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence