THERMAL DIFFUSION AND VISCOUS DISSIPATION EFFECTS ON MAGNETOHYDRODYNAMIC HEAT AND MASS FILLED WITH TiO2 AND Al2O3 WATER BASED NANOFLUIDS

In the present study, an analytical solution has been carried out to discuss the unsteady free convective flow of heat and mass transfer past a semi-infinite flat plate in the presence of thermal diffusion and viscous dissipation. Two types of nanofluids, namely, TiO2 and Al2O3 water-based nanofluids, have been considered for the present investigation. The plate is moved with a constant velocity U-0, temperature, and concentration that are assumed to be fluctuating with time harmonically from a constant mean at the plate. The layer equations are assumed to be of oscillatory type and solved by using the small perturbation technique. The results are presented graphically and discussed for various resulting parameters. Thermal diffusion effect significantly increases the bounded layer thickness.