• HYDROMAGNETIC BOUNDARY LAYER FLOW OF A VISCO-ELASTIC FLUID WITH HEAT AND MASS TRANSFER ON A CONTINUOUSLY MOVING SURFACE

Abstract

The problem of two-dimensional free convective boundary layer flow of a visco-elastic fluid over a continuously moving surface has been investigated in presence of transverse magnetic field. The effects of heat and mass transfer are also analyzed in this paper. Heat is supplied from the plate to the fluid at a uniform rate. The suction at the plate is assumed to be constant and the plate is assumed to move continuously with a uniform velocity U in the vertically upward direction. The visco-elastic fluid flow is characterized by Walters liquid (Model B^'). A uniform magnetic field of strength B0 is applied in the direction perpendicular to the plate. The x-axis is considered along the plate in the vertically upward direction and y-axis is taken perpendicular to the plate in the outward direction. The perturbation technique has been used to solve the governing equations of motion. The analytical expressions for the velocity field, temperature and concentration are obtained. The velocity and shearing stress have been illustrated graphically for various values of the visco-elastic parameter under the influence of other flow parameters.