THERMAL SCIENCE

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A comparison of porous structures on the performance of slider bearing with surface roughness in micropolar fluid film lubrication

ABSTRACT
This paper presents the theoretical analysis of comparison of porous structures on the performance of a slider bearing with surface roughness in micropolar fluid film lubrication. The globular sphere model and Irmay's capillary fissures model have been subject to investigations. The general Reynolds equation which incorporates randomized roughness structure with Stokes micropolar fluid is solved with suitable boundary conditions to get the pressure distribution, which is then used to obtain the load carrying capacity. The graphical representations suggest that the globular sphere model scores over the Irmay's capillary fissures model for an overall improved performance. The numerical computations of the results show that, the act of the porous structures on the performance of a slider bearing is improved for the micropolar lubricants as compared to the corresponding Newtonian lubricants.
KEYWORDS
PAPER SUBMITTED: 2017-08-25
PAPER REVISED: 2017-12-02
PAPER ACCEPTED: 2017-12-22
PUBLISHED ONLINE: 2018-01-07
DOI REFERENCE: https://doi.org/10.2298/TSCI170825304R
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