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Research Paper | Mathematics | India | Volume 4 Issue 12, December 2015

Ion Slip and Dufour Effect on Unsteady Free Convection Flow past an Infinite Vertical Plate with Oscillatory Suction Velocity and Variable Permeability

R. Panneerselvi | J. Kowsalya

Abstract: Unsteady two dimensional free convection and mass transfer flow of a viscous, incompressible, electrically conducting fluid past an infinite vertical porous plate of time dependent permeability with oscillatory suction velocity and heat source in the presence of Dufour effect, Hall Effect and Ion slip effect is investigated. A uniform magnetic field is applied normal to the direction of the flow. The governing equations are solved using perturbation technique in Eckert number. Approximate solutions for the velocity field, temperature distribution, concentration distribution, skin friction, Nusselt number and Sherwood number are obtained. The results obtained are discussed for various emerging parameters such as Prandtl number (Pr), Grashof number (Gr), Modified Grashof number (Gm), Dufour number (Du), Schmidt number (Sc), Source strength parameter (S), Eckert number (Ec), Hall parameter (e) and Ion slip parameter (i) encountered in the problem under investigation.

Keywords: Mass transfer, Free convection, Porous medium, Suction, Heat source, Ion slip effect

Edition: Volume 4 Issue 12, December 2015,

Pages: 2079 - 2090

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