Effect of MFD Viscosity and Porosity on Revolving Axi-symmetric Ferrofluid with Rotating Disk

摘要

The Effect of magnetic field-dependent viscosity (MFD) along with porosity on the revolving Axi-symmetric steady flow of ferrofluid with rotating disk is studied by solving the boundary layer equations using Neuringer-Rosensweig model. Besides calculating the velocity components and pressure for different values of MFD viscosity parameter k and porosity ε with the variation of Karman's dimensionless parameter α we have also calculated the displacement thickness of the boundary layer, total volume flowing outward the z-axis and the torque on the disk. The numerical results obtained here for various flow characteristics, are shown graphically.