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Unsteady MHD Free Convection Flow of a Kuvshinski Fluid Past a Vertical Porous Plate in the Presence of Chemical Reaction and Heat Source/Sink

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Abstract:

Unsteady magneto hydrodynamic (MHD) free convection flow of a viscous, incompressible and electrically conducting, well known non-Newtonian fluid named as Kuvshinski fluid past an infinite vertical porous plate in the presence of homogeneous chemical reaction, radiation absorption and heat source/sink is studied analytically. The plate is assumed to move with a constant velocity in the direction of fluid flow. A magnetic field of uniform strength is applied perpendicular to the plate, which absorbs the fluid with a suction that varies with time. The dimensionless governing equations are solved analytically using two terms harmonic and non-harmonic functions. The expressions for the fields of velocity, temperature and concentration are obtained. With the aid of these the expressions for skin friction, Nusselt number and Sherwood number are derived. The effects of various physical parameters on the flow quantities are studied through graphs and tables. For the validity, we have checked our results with previously published work and found in good agreement. Velocity decreases for an increase in visco elastic parameter α2, heat absorption coefficient φ, the chemical reaction parameter γ , the magnetic field parameter M, the Prandtl number Pr, the Schmidt number Sc, and increases for increase in Grashof number Gm, the radiation absorption parameter Q 1

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International Journal of Engineering Research in Africa Vol. 14 View Preview

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Periodical:

International Journal of Engineering Research in Africa (Volume 14)

Pages:

13-27

DOI:

https://doi.org/10.4028/www.scientific.net/JERA.14.13

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Online since:

March 2015

Authors:

S. Harinath Reddy, M.C. Raju*, E. Keshava Reddy

Keywords:

Chemical Reaction Source/Sink, Free Convection, Kuvshinski Fluid, MHD, Porous Plate, Radiation Absorption

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* - Corresponding Author

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