Three dimensional MHD Laminar source flow between porous disks

Abstract

The three dimensional -magnetohydrodynamic laminar source flow between two infinite rotating porous insulating disks is investigated including the effect of induced radial electric field. The solution is obtained by perturb. ing the source free flow solution using reduced source Reynolds number R.* as the perturbation parameter. Asymptotic solutions are obtained for velocity perturbation when R_w < < M², R_w and M being injection or suction Reynolds number and Hartmann number respectively. The inter. action of source, injection, magnetic field and induced radial electric field with the flow are discussed in detail. It is observed that, increase in source Reynolds number R_e" decreases the magnitude of the angular velocity and increases the magnitudc of radial velocit.y, Further it is noted that due to induced radial electric field there is a marked change in angular velocity profiles.