THERMAL SCIENCE

International Scientific Journal

Zoran B. Boričić

,

Dragiša D. Nikodijević

,

Dragica R. Milenković

,

Živojin M. Stamenković

,

Dragan S. Živković

,

Miloš M. Jovanović

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

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.
KEYWORDS
magnetohydrodynamic-MHD, laminar boundary layer, variable electrical conductivity, generalized similarity method, universal equation
PAPER SUBMITTED: 2010-05-22
PAPER REVISED: 2010-07-05
PAPER ACCEPTED: 2010-07-06
DOI REFERENCE: https://doi.org/10.2298/TSCI100522024B
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2010, VOLUME 14, ISSUE Supplement 1, PAGES [S171 - S182]
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Unsteady plane MHD boundary layer flow of a fluid of variable electrical conductivity

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