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UNSTEADY PLANE MHD BOUNDARY LAYER FLOW OF A FLUID OF VARIABLE ELECTRICAL CONDUCTIVITY

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Author(s): Zoran B Boričić | Dragiša D Nikodijević | Dragica R Milenković | Živojin Stamenković | Dragan S Živković | Miloš M Jovanović

Journal: Thermal Science
ISSN 0354-9836

Volume: 14;
Issue: 5;
Start page: 171;
Date: 2010;
Original page

Keywords: magnetohydrodynamic-MHD | laminar boundary layer | variable electrical conductivity | generalized similarity method | universal equation

ABSTRACT
This paper is devoted to the analysis of unsteady plane laminar magnetohydrodynamic (MHD) boundary layer flow of incompressible and variable electrical conductivity fluid. The present magnetic field is homogenous and perpendicular to the body surface. Outer electric filed is neglected and magnetic Reynolds number is significantly lower then one i.e. considered problem is in induction-less approximation. Free stream velocity is an arbitrary differentiable function. Fluid electrical conductivity is decreasing function of velocity ratio. In order to solve the described problem multiparametric (generalized similarity) method is used and so-called universal equations are obtained. Obtained universal equations are solved numerically in appropriate approximation and a part of obtained results is given in the form of figures and corresponding conclusions.

Tango Jona
Tangokurs Rapperswil-Jona

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