MHD free convection and mass transfer flow of a dissipative fluid over a vertical plate with time-dependent plate velocity

This paper presents a numerical analysis of the MHD free convection and mass transfer flow of a dissipative fluid along a vertical plate with time–dependent plate velocity, the surface of which is exposed to a constant heat flux. The non-linear system of partial differential equations is numerically solved by the implicit finite difference scheme of Crank–Nicolson’s type. The velocity, temperature and concentration profiles for different values of plate velocity are plotted. The influence of the buoyancy ratio parameter, dissipation number, Grashof number, Prandtl number, Schmidt number and magnetic parameter on heat and mass transfer are discussed. It is found that, the velocity as well as temperature increases with effects dissipation number. the velocity and temperature decreases with increases in the magnetic parameter, while concentration profiles increases with increases in magnetic parameter. The velocity increases as well as the temperature and the concentration decreases with increases buoyancy ratio parameter. The velocity increases as well as the temperature and the concentration decreases with increases Grashof number.

Keywords:

Time-dependent plate velocity , MHD , free convection , dissipativ fluid , vertical plate