Transient thermophoretic particle deposition on MHD free convective and viscous dissipative flow along an inclined surface considering Dufour-Soret effects

In this paper thermophoretic particle deposition on an unsteady magnetodydrodynamic (MHD) free convective heat and mass transfer flow along an impulsively started infinite inclined porous plate under the influence of Dufour-Soret effects have been studied numerically. The transformed governing equations obtained by similarity transformations are solved by shooting method. Comparison with previously published work on special case of the problem were performed and found to be in very good agreement. The effects of various parameters on the dimensionless velocity, temperature, concentration distributions as well as wall themophoretic velocity are displayed graphically for a hydrogen-air mixture as the non-chemical reacting fluid pair. In addition, the predicted results for the local skinfriction coefficient, local Nusselt number and local Sherwood number are also tabulated. Wall thermophoretic velocity is increased with the increasing values of the thermophoretic parameter as well as suction parameter. The results also show that the presence of thermal diffusion and diffusion thermo intensify the shear stress but reduce the rate of heat and mass transfer. MSC: 76M55 • 65L06