Analysis of Jenkins Model Ferro Flow for Magnetic Field Dependent Viscosity with Porosity

The effect of magnetic field dependent viscosity on a steady axi-symmetric ferrofluid flow over a rotating disk with porosity is investigated through Jenkins model.The governing equations are reduced to ordinary differential equations and are solved through asymptotic expansion.In this system we analyze the effect of magnetic field dependent viscosity (m), material constant ( ̅ ) and porosity () on the velocity profiles and pressure.The results obtained are represented in the form of graphs by varying one of the parameter with fixed values of other two parameters.The results reveals that the parameters has significant effect on radial velocity and pressure whereas negligible effect on tangential and axial velocity.