The Effect of Magneto-hydrodynamics on Curved Circular Plate and Porous-rough Flat Plate with Non-Newtonian Fluid

This study explores the effect of theoretical MHD on curved circular and flat plates using non-Newtonian lubricant. Lower flat plate is porous and rough. The Stokes theory has been used to incorporate the couple stress effects. Furthermore, Darcy law is taken into account for porous medium. Average pressure, load support and squeeze film time are determined from Christensen theory. The numerical results for bearing characteristics such as pressure, load carrying capacity and squeeze film time are plotted graphically to study the influence of curved circular and flat plate. This investigation shows that the squeeze film characteristics are higher in azimuthal roughness patterns and lower in radial patterns due to roughness parameter. In addition, MHD and couple stress boost the pressure, load support and squeezing time compared to Newtonian and non-magnetic cases. The effect of permeability of the porous layer is to decrease the load carrying capacity as it gives an easy path for the lubricant to pass through.