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IJPAP Vol.46(02) [February 2008] >


Title: Radiation and mass transfer effects on an unsteady MHD convection flow past a semi-infinite vertical permeable moving plate embedded in a porous medium with viscous dissipation
Authors: Prasad, V Ramachandra
Reddy, N Bhaskar
Keywords: Radiation
Viscous dissipation
Heat and mass transfer
Issue Date: Feb-2008
Publisher: CSIR
Abstract: An unsteady, two-dimensional, hydromagnetic, laminar mixed convective boundary-layer flow of an incompressible, Newtonian, electrically-conducting and radiating fluid along a semi-infinite vertical permeable moving plate with heat and mass transfer is analyzed, by taking into account the effect of viscous dissipation. The plate moves with a constant velocity in the direction of fluid flow while the free stream velocity follows an exponentially increasing small perturbation law. The dimensionless governing equations for this investigation are solved analytically using two-term harmonic and non-harmonic functions. Numerical evaluation of the analytical results is performed and graphical results for velocity, temperature and concentration profiles within the boundary layer and tabulated results for the skin-friction coefficient, Nusselt number and Sherwood number are presented and discussed. It is observed that, when the radiation parameter increases, the velocity and temperature decrease in the boundary layer, whereas when thermal and solutal Grashof increase, the velocity increases.
Page(s): 81-92
ISSN: 0019-5596
Source:IJPAP Vol.46(02) [February 2008]

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