Influence
of thermophoresis on heat and mass transferВ
under non-Darcy MHD mixed convection along a vertical flat plate
embedded in a porous medium in the presence of radiation
N. Kishan1 and S. Jagadha2
1Osmania University, Hyderabad-7, Telangana State, India
2St. Martin’s Engineering college, Dhullapally, Secunderabad, India
E-mail: kishan_n@rediffmail.com; jagadhasaravanan@gmail.com
Keywords: MHD, non-Darcy porous medium, mixed convection, thermal radiation, thermophoresis, implicit finite difference scheme
Pages: 97–108
Abstract
The paper presents an investigation of the influence of thermophoresis on MHD mixed convective heat and mass transfer of a viscous, incompressible and electrically conducting fluid along a vertical flat plate with radiation effects. The plate is permeable and embedded in a porous medium. To describe the deviation from the Darcy model the Forchheimer flow model is used. The Rosseland approximation is used to describe the radiative heat flux in the energy equation. The governing partial differential equations are transformed into a system of ordinary differential equations using similarity transformation. The nonlinear ordinary differential equations are linearized by using quasi-linearization technique and then solved numerically by using implicit finite difference scheme. The numerical results are analyzed for the effects of various physical parameters such as magnetic parameter Ha, mixed convection parameter Rad /Ped, Reynolds number Red, radiation parameter R, thermophoretic parameter τ, Prandtl number Pr, and
Schmidt number Sc. The heat transfer coefficient is also tabulated for
different values of physical parameters.
DOI: 10.1134/S0869864316010108
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