Theoretical study of Shliomis model based magnetic squeeze film in rough curved annular plates with assorted porous structures

Abstract

In present theoretical investigation, the effect of Shliomis model based ferrofluid lubrication on the squeeze film between curved rough annular plates with comparison between two different porous structures is discussed. Kozeny-Carman's formulation and Irmay's model are adopted for porous structures. The stochastic models of Christensen and Tonder have been used for characterizing transverse roughness. The associated Reynolds type equation is solved to obtain the pressure distribution leading to the calculation of the load carrying capacity. The graphical representations show that the adverse effect of transverse roughness can be minimized by the positive effect of magnetization in the case of negatively skewed roughness, suitably choosing curvature parameters. Further, this compensation appears to be more in the case of Irmay's model as compared to that of Kozeny- Carman's method, which makes the Irmay's model more suitable for adoption. It is observed that the effect of morphology parameter and volume concentration parameter increases the load carrying capacity of the bearing system.

Keywords

• porous structures
• magnetic fluid
• curved annular plates
• squeeze film
• roughness