Diffusion Thermo Effects Of Visco-Elastic Fluid past a Porous Surface in Presence of Magnetic Field and Radiation

The two dimensional free convective hydro-magnetic flow of an electrically conducting visco-elastic fluid past a vertical porous surface has been studied in presence of radiation and chemical reaction of first order. Simultaneous effects of heat and mass transfer are also studied in combination of the physics of diffusion thermo (Dufour effect). The suction at the plate is assumed to be constant. A regular perturbation technique has been used to solve the problem. The results are analyzed graphically for various values of visco-elastic parameter along with a combination of other flow parameters involved in the solution.