Lubricant additives effects on the squeeze film lubrication between anisotropic porous rectangular plates

Abstract

In the present paper, the squeeze film lubrication between anisotropic porous rectangular plates with lubricants containing polar additives has been studied. The lubricants containing additives has been modelled as a Stokes couple stress fluid. The more realistic Beavers-Joseph slip boundary conditions are used to derive the most general form of Reynolds equation, which account for the effects due to the lubricant additives and the anisotropic nature of porous material. The eigen type of expressions are obtained for the fluid film pressure, load carrying capacity and squeeze film time. It is observed that the effect of the lubricant additives is to increase the load carrying capacity and the squeeze film time as compared to the Newtonian lubricants. Further for anisotropic porous surface, the maximum load carrying capacity is attained for the rectangular (non-square) plates.