Free-Stream-Induced Unsteady MHD Flow with Hall Effect over Permeable Plate in a Rotating System

Analytical investigations of unsteady magnetohydrodynamic flow with Hall effect of a viscous, incompressible and electrically conducting fluid past a porous flat plate with impulsively moving free stream in a rotating frame of reference are carried out. Exact solution for the primary and secondary fluid velocities is obtained in closed form by Laplace transform technique. The expressions for skin frictions due to primary and secondary flows are also derived. The numerical values of the primary and secondary fluid velocities are displayed graphically, whereas those of skin frictions are presented in tabular form for various values of pertinent flow parameters. Asymptotic nature of the solution is also examined, for both small and large values of time T, to understand the physics of the flow.