Abstract:
This study addresses the problem of unsteady free
convection incompressible MHD fluid flow past a semi-infinite
vertical porous plate in the presence of a strong magnetic field
inclined at an angle
to the plate with Hall and Ion-Slip
currents. It investigates the effects of Grashof number, heat
source parameter, suction velocity, time, angle of inclination,
Ion-Slip, Hall current and mass diffusion parameter on the
convectively cooled or convectively heated plate restricted to
turbulent boundary layer of the flow field. The partial
differential equations governing the flow problem considered
in our study are solved by a finite difference approximation
while the computation of skin friction, rate of heat transfer and
mass transfer at the plate is achieved by Newton’s
interpolation approximation over the first five points.The
results show that the Hall current, Schmidt number, Modified
Grashof number, heat source parameter, suction velocity, time,
angle of inclination, Ion-Slip currenton the convectively cooled
or convectively heated plate affect the velocity, temperature
and concentration profiles. Increases in Hall parameter cause a
decrease in both primary and secondary profiles while increase
in Ion Slip current parameter leads to increase in primary
velocity profiles but a decrease in secondary velocity profiles.
Consequently, their effects alter the skin friction, rate of mass
transfer and the rate of heat transfer.
