MHD flow of micropolar fluid in a rectangular duct with hall and ion slip effects

the steady flow of incompressible and electrically conducting micropolar fluid flow through a rectangular channel is considered taking hall and ionic effects into consideration. an external uniform magnetic field is applied which is directed arbitrary in a plane perpendicular to the flow direction. the governing partial differential equations are solved numerically using finite difference method, and the effects of micropolar parameters, magnetic parameter, hall parameter and ion slip parameter on the velocity and microrotation are discussed.