Analysis of pressure load-carrying capacity and squeezing time on magnetohydrodynamic couple stress fluid flow between sphere and flat plate with slip velocity

Abstract

This paper presents a theoretical analysis of the effects of a magnetic field, couple stress fluid, and slip velocity on squeeze film lubrication between a sphere and a flat plate. The modified Reynolds equation is derived using Stokes micro continuum theory of couple stress fluids. The nondimensional governing equations of the flow model are solved analytically for pressure, load-carrying capacity and squeezing time. The results are graphically presented and analyzed for various parameters. The study shows that the couple stress parameter and magnetic field significantly enhance the film pressure, load-carrying capacity, and squeeze film time compared to the Newtonian and nonmagnetic cases. Also from the results, it is observed that the squeeze film properties can be significantly reduced by the effect of the slip parameter.