Table of Contents
Indian Journal of Materials Science
Volume 2015, Article ID 159698, 9 pages
http://dx.doi.org/10.1155/2015/159698
Research Article

Combined Effect of Slip Velocity and Surface Roughness on a Magnetic Squeeze Film for a Sphere in a Spherical Seat

Department of Mathematics, Sardar Patel University, Vallabh Vidhyanagar, Gujarat 388120, India

Received 18 May 2015; Accepted 26 July 2015

Academic Editor: Pradeep Lancy Menezes

Copyright © 2015 G. M. Deheri and Sejal J. Patel. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This investigation analyzes the performance of a magnetic fluid based squeeze film for a sphere in a rough spherical seat with slip velocity. The slip model of Beavers and Joseph has been deployed to study the effect of velocity slip while the stochastic model of Christensen and Tonder has been used to calculate the effect of surface roughness. The concerned statistically averaged Reynolds’ type equation is solved to derive the pressure distribution which results in the calculation of load carrying capacity. The results presented in graphical forms confirm that the adverse effect of slip velocity can be overcome to a large extent at least in the case of negatively skewed roughness. However, lower values of slip may be preferred for enhancing the performance characteristics of the bearing system. Besides, variance (−ve) provides a little support to improve the performance characteristics.