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Impact of Cattaneo-Christov Heat Flux Model on the Flow of Maxwell Ferromagnetic Liquid Along a Cold Flat Plate Embedded with Two Equal Magnetic Dipoles

Journal of Magnetics, Volume 22, Number 3, 30 Sep 2017, Pages 472-477
S. U. Rehman (Department of Mathematics, University of Engineering and Technology), A. Zeeshan * (Department of Mathematics and Statistics, FBAS, IIUI), A. Majeed (Department of Mathematics and Statistics, FBAS, IIUI), M. B. Arain (Department of Mathematics and Statistics, FBAS, IIUI)
Abstract
The target of the current study is to inspect theoretically two-dimensional boundary layer flow of a Maxwell ferromagnetic fluid toward a flat plate. An external magnetic field due to two equal line dipole which are equidistant
from the wall and perpendicular to the flow plane is applied. Cattaneo-Christov heat flux model is utilized in modified form of Fourier’s Law to disclose the heat transfer characteristic. Governing flow problem is
normalized into ordinary differential equation by adopting similarity transform procedure. The solution of resulting non-linear ODE’s are solved by shooting technique based on Runge-Kutta algorithm with the help of
MATLAB. Characteristic of sundry parameter like magneto-thermomechanical (ferrohydrodynamic) interaction parameter, dimensionless thermal relaxation, Prandtl number and Debora number on velocity and temperature
profile are displayed via graphs and in tabular form. It is also pointed out that temperature profile suppresses by varying values of the thermal relaxation time and Prandtl number and increasing behaviour is
seen against ferrohydrodynamic interaction. Present numerical results are compared with those published previously in the literature for the case of Newtonian fluid (α1 →0) and found an excellent agreement.
 
Keywords: Ferrofluid; two line currents; Cattaneo-Christov heat flux model; thermal relaxation; Maxwell fluid
DOI: https://doi.org/10.4283/JMAG.2017.22.3.472
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