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Soret and Dufour Effects on MHD Free Convection Flow of a Chemically Reacting Fluid Past over a Stretching Sheet with Heat Source/Sink
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Volume 3, 2015
Issue 5 (October)
Pages: 136-146   |   Vol. 3, No. 5, October 2015   |   Follow on         
Paper in PDF Downloads: 90   Since Sep. 23, 2015 Views: 2267   Since Sep. 23, 2015
K. Gangadhar, Mathematics Department, Acharya Nagarjuna University Ongole Campus, Ongole, Andhra Pradesh, India.
S. Suneetha, Applied Mathematics Department, Yogi Vemana University, Kadapa, Andhra Pradesh, India.
A mathematical model is presented for a two-dimensional, steady, viscous, incompressible, electrically conducting and laminar MHD free convection flow with soret and dufour effects in the presence of porous medium and heat generation/absorption. The governing differential equations of the problem have been transformed into a system of non- dimensional differential equations, which are then solved numerically using a fourth-order Runge-Kutta method along with shooting technique. The velocity and temperature distributions are discussed numerically and presented through graphs. The numerical values of skin-friction coefficient and Nusselt number at the plate are derived, discussed numerically for various values of physical parameters and presented through Tables. As the heat flux exponent parameter or suction/injection parameter increases, both the local Skin-friction coefficient and Sherwood number increase, whereas the Nusselt number decreases. It is observed that the local skin-friction coefficient and local Nusselt number decrease, whereas Sherwood number increases.
MHD, Free Convection, Heat and Mass Transfer, Soret and Dufour Effects, Porous Medium, Heat Generation/Absorption
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