• NON-NEWTONIAN EFFECTS ON SQUEEZE FILM LUBRICATION BETWEEN POROUS STEPPED CIRCULAR PLATES

Abstract

The purpose of this paper is to study the effect of non-Newtonian fluid on the squeeze film lubrication between porous stepped circular plates. The problem is analyzed on smooth and porous plates. The modified Reynolds equation is derived for porous stepped circular plates and applied to obtain solution of squeeze film characteristics. The present paper traces out the comparison of classical Newtonian lubricant case with non-Newtonian micropolar fluids and are found to enhance the load carrying capacity and lengthen the approaching the time of porous stepped circular plates. The load capacity decreases as the step height increases. The results obtained are comparable with standard results and are shown in terms of graphs. The squeeze film time is lengthened for the micropolar lubricants as compared to the corresponding Newtonian case.