Micropolar Fluid Flow with Hall Effect and Mass Transfer in a Porous Medium

The unsteady flow of a micropolar fluid in a porous medium has been studied, taking the effect of Hall parameter and mass transfer into account. The resulting dimensionless partial differential equations were solved analytically using perturbation technique with a view to obtain solutions for the velocity, angular velocity, temperature and concentration distributions, as well as the Skin friction. The influence of various parameters governing the flow such as; the thermal Grashof number, Hartmann number, mass Grashof number, Schmidt number, Prandtl number, permeability Parameter, time and Hall parameter on the flow field. We observed that, the velocity increases with the increase in mass and thermal Grashof number and it decreases with increase in magmetic parameter, Hall current, permeability parameter, Schmidt number, and Prandtl number. Temperature decreases with increase in Prandtl number and concentration decreases with the increase in Schmidt number.