THERMAL SCIENCE

International Scientific Journal

ACTIVE CONTROL OF FLOW AND HEAT TRANSFER IN BOUNDARY LAYER ON THE POROUS BODY OF ARBITRARY SHAPE

ABSTRACT
The paper discusses the possibility of active control of flow and heat transfer using a magnetic field and suction in a generalized form. The unsteady temperature two-dimensional laminar magnetohydrodynamic boundary layer of incompressible fluid on a porous body of arbitrary shape is analyzed. Outer electric filed is neglected, magnetic Reynolds number is significantly lower than one i. e. the considered problem is in inductionless approximation. Characteristic properties of fluid are constant and it is assumed that a uniform suction or injection of a fluid, same as the fluid in primary flow, can take place through the body surface. The boundary-layer equations are generalized such that the equations and the boundary conditions are independent of the particular conditions of the problem, and this form is considered as universal. Obtained universal equations are numerically solved using the “progonka” method. Numerical results for the dimensionless velocity, temperature, shear stress and heat transfer as functions of introduced sets of parameters are obtained, displayed graphically and used to carry out general conclusions about the development of temperature magnetohydrodynamic boundary layer. [Projekat Ministartsva nauke Republike Srbije, br. TR 35016]
KEYWORDS
PAPER SUBMITTED: 2012-04-27
PAPER REVISED: 2012-05-05
PAPER ACCEPTED: 2012-06-06
DOI REFERENCE: https://doi.org/10.2298/TSCI120427170N
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Supplement 2, PAGES [S295 - S309]
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© 2018 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