MHD Free Convective Heat and Mass transfer of fluid flow past a moving variable surface in porous media
Journal Title: INTERNATIONAL JOURNAL OF ENGINEERING TRENDS AND TECHNOLOGY - Year 2013, Vol 4, Issue 4
Abstract
This paper is focused to developed a mathematical model and comparative study of combined effects of free convective heat and mass transfer on the steady two-dimensional, laminar fluid flow past a moving permeable vertical surface in a porous media subject to a transverse uniform magnetic field. The surface is maintained at linear temperature and concentration variations. Using a similarity transformation, the nonlinear coupled differential equations governing the boundary layer flow, heat and mass transfer are first reduced to a system of coupled ordinary differential equations and then solved numerically using an implicit finite difference technique. The effects of different parameters such as magnetic field strength parameter (M), ,Schmidt number (Sc), buoyancy ratio (N) , suction /blowing parameter (fw), darcy number (Da) are examined in detail to show the interesting aspects of the solution. Numerical result for the dimensionless velocity profiles, the temperature profiles, the concentration profiles, the local Nusselt number , sherwood number , skin friction cofficient are presented. The interesting numerical results indicate that the buoyancy parameter, magnetic parameter and suction/blowing parameter have a retarding effect on the velocity, temperature and concentration profiles.
Authors and Affiliations
Ashok Kumar Singh1 . , Benu Madhab
Keywords
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