Magnetic fluid based squeeze film between porous elliptical plates

Archibald [1] analyzed the performance of a squeeze film between various geometrical configurations. Later on Wu [2, 3] investigated a squeeze film behavior for mainly, two types of geometries namely, annular and rectangular. Prakash and Viz [4] developed some aspects of the analysis incorporated in Wu [2, 3] and obtained the load carrying capacity ultimately leading to time height relation for squeeze film between porous plates. This article considered various geometries like circular, annular, elliptical and rectangular. Besides, infinitely long rectangular plates and conical plates were also subjected to investigation. Further, a comparison was made between the squeeze film behavior of various geometries of equivalent surface area, other parameters remaining the same and it was found that circular plates had the highest transient load carrying capacity. Murti [5] dealt with the performance of the squeeze film between curved circular plates, describing the film thickness by an exponential expression. Murti’s analysis was further developed by Gupta and Vohra [6] who discussed the squeeze film behavior between curved annular plates. All the above studies considered the conventional lubricant. The application of magnetic fluid as a lubricant was investigated by Verma [7]. The magnetic fluid considered in this paper consisted of fine magnetic grains coated with a surfactant and magnetically passive solvent. Subsequently, Bhat and Deheri [8] studied the squeeze film behavior between porous annular disks using a magnetic field oblique to the lower disk. This analysis of Bhat and Deheri [9] was improved by them in 1992 to analyze the behavior of a magnetic fluid based squeeze film between curved circular plates. Patel and Deheri [10] discussed the performance of a magnetic fluid based squeeze film between curved annular plates. They [11] also considered magnetic fluid based squeeze film between two curved plates lying along the surfaces determined by secant functions. Recently, Deheri, Patel and Patel [12] investigated the magnetic fluid based squeeze film behavior between rotating rough annular plates. In this article we seek to analyze the configuration of Prakash and Viz [4] regarding elliptical plates in the presence of a magnetic fluid lubricant.