Hydromagnetic Unsteady Free Convective Flow and Mass Transfer of an Elastico- Viscous Fluid past an Infinite Vertical Porous Plate in a Rotating Porous Medium

摘要

The unsteady free convective and mass transfer flow of an incompressible electrically conducting elastico-viscous fluid past a vertical infinite porous plate with constant suction subjected to a transverse magnetic field in a rotating porous medium is considered. The flow analysis is undertaken under the fluctuating temperature which varies harmonically with time between limits T_w ± ∈ (T_w - T_∞) as t varies from 0 to 2π/ω and the species concentration at the free stream is assumed to be constant. The analytic expressions for velocity, temperature and concentration are obtained and the effects of flow parameters such as magnetic parameter(M), porosity parameter(K_p), rotation parameter(R), Grashof number(G_r, G_m) on primary and secondary velocity profiles have been studied.