INFLUENCE OF MAGNETIC FIELD AND WALL SLIP CONDITIONS ON STEADY FLOW BETWEEN PARALLEL FLAT WALL AND A LONG WAVY WALL WITH SORET EFFECT

The steady MHD flow in the presence of temperature dependent heat source in a viscous incompressible fluid bounded by a parallel flat wall and a long wavy wall is studied with heat and mass transfer, taking into account the thermal-diffusion (Soret) effects, when the no-slip condition at the channel wall is no longer valid. An external uniform magnetic field and a uniform suction are applied perpendicular to the flat wall. The walls are kept at different but constant temperatures. The velocity, temperature and concentration field have been evaluated numerically for various values of the parameters entering into the problem. The skin friction, rate of heat and mass transfer at the walls are obtained and discussed graphically. It is observed that increasing suction parameter tends to increase concentration of the fluid and thus decreases the fluid velocity. Further, it is interesting to note that when gamma = 0 (without slip) and M increases from 0 to 2 there is 28% decrease in the velocity magnitude, whereas the corresponding decrease, when gamma = 0.1(with slip) is 38%, which shows that gamma significantly affect the flow.