Effects of texture shape and fluid–solid interfacial slip on the hydrodynamic lubrication performance of parallel sliding contacts

Abstract

The aim of this paper is to study the effect of texture shape and fluid–solid interfacial slip on the hydrodynamic lubrication performance of parallel sliding contact. The modified Reynolds equation is solved using finite difference method with a Gauss–Seidel relaxation scheme. The two-component slip length model has been used in order to calculate the slip velocity terms. Results indicate that the consideration of fluid slip around the surface texture enhances the hydrodynamic performance of textured parallel sliding contact as compared to the conventional textured surface. It is concluded that the surface texture should be designed with lower texture height ratio and aspect ratio in order to achieve better hydrodynamic lubrication performance. Furthermore, it is observed that the lower critical threshold shear stress and the higher slip length coefficient improve the performance of parallel sliding contact.

Keywords

Conditioned surface textures fluid–solid interfacial slip hydrodynamic lubrication positive textures parallel sliding contacts

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