Analysis of Viscous Shear Effect in the Boundary Layer Region of Porous Medium of Infinitely Long Journal Bearing

Authors

  • M. Somashekhar, G. K. Kalavathi, M. G. Vasundhara, P. A. Dinesh, E. L. Pradeesh

Keywords:

viscous shear term, heterogeneous slip/no-slip surface, roughness. Structural Parameter

Abstract

This study analyses the effect of viscous shear over a permeable boundary. A viscous shear term called structural parameter is considered to derive a generalized Reynolds equation that governs the lubricant flow. The performance of structural parameters is then analyzed using infinitely long journal-bearing approximation. Reynolds boundary condition is considered in long bearing approximation. It is found that structural parameter adversely affects the load carrying capacity (LCC) and decreases friction, however attitude angle is not affected significantly. Also, the analysis indicates that the effect of viscous shear force is prominent when the bearing operates at a lower eccentric ratio and lower permeability. It is then used to analyse the narrow bearing approximation. Analysis shows that the combination of the structural parameter, permeability parameter and eccentricity ratio will significantly increase the effect of the boundary layer region within the porous region, this boosts load-carrying capacity and reduces friction.

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Published

10.11.2023

How to Cite

M. Somashekhar. (2023). Analysis of Viscous Shear Effect in the Boundary Layer Region of Porous Medium of Infinitely Long Journal Bearing. International Journal of Intelligent Systems and Applications in Engineering, 11(11s), 663–676. Retrieved from https://www.ijisae.org/index.php/IJISAE/article/view/7311

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Research Article