• Elisha

The study investigates the unsteady free convective viscous incompressible flow over an infinite vertical porous flat plate with variable heat and mass transfer in a slip-flow regime. Assuming variable suction at the porous plate, approximate solutions for velocity, skin friction, temperature, and species concentration are derived. The effects of Gr, Gc, Sc, A, and βeta for Pr = 0.71 (air) are presented graphically and discussed qualitatively. It is observed that an increase in the Grashof number leads to a decrease in fluid velocity. Conversely, an increase in the modified Grashof number generally results in an increase in velocity. As the Schmidt number increases, the velocity initially increases within the boundary layer region but subsequently decreases. Magnetic intensity is found to suppress fluid velocity. Additionally, an increase in pore size and Prandtl number causes a decrease in fluid velocity. The suction parameter significantly influences temperature; as suction increases, the temperature field decreases. Similarly, fluid concentration decreases with increasing suction. For a fixed magnetic intensity, an increase in the Grashof number results in increased skin friction. However, as magnetic intensity increases, skin friction decreases. The influence of amplitude on velocity profiles is examined, showing that increased amplitude leads to decreased fluid velocity and occasional backward flow near the boundary layer, which diminishes farther from the boundary

Free Convection, Incompressible Fluid, Heat and Mass Transfer.

"Fluctuating magneto hydrodynamic convective flow over a vertical porous plate with slip flow and oscillating boundary conditions", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 6, page no.798-804, June-2017, Available :http://www.jetir.org/papers/JETIR1706141.pdf

"Fluctuating magneto hydrodynamic convective flow over a vertical porous plate with slip flow and oscillating boundary conditions", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 6, page no. pp798-804, June-2017, Available at : http://www.jetir.org/papers/JETIR1706141.pdf