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Title: Combined experimental and multiphase computational fluid dynamics analysis of surface textured journal bearings in mixed regime of lubrication
Authors: Morris, Nicholas J.
Shahmohamadi, Hamed
Rahmani, Ramin
Rahnejat, Homer
Garner, Colin P.
Keywords: Surface texturing
Journal bearing
Multiphase flow
Cavitation
Finite volume
CFD
Issue Date: 2018
Publisher: John Wiley & Sons Ltd (© The Authors)
Citation: MORRIS, N.J. ... et al, 2018. Combined experimental and multiphase computational fluid dynamics analysis of surface textured journal bearings in mixed regime of lubrication. Lubrication Science, 30, pp. 161–173.
Abstract: This paper investigates the effect of surface texturing in a partial pad journal bearing through a series of controlled experiments at operating conditions, promoting mixed or boundary regimes of lubrication. Improvements to load carrying capacity are observed under certain operating conditions. A comprehensive computational finite volume multiphase fluid dynamics analysis, including vapour transport equation and modified finite-size cavity Rayleigh-Plesset model, is used to study the effect of indented surface textures in the microscale contact domain and within the individual textures themselves. The results show improved conditions with a textured journal through promotion of micro-hydrodynamic effect, delaying the effect of lubricant rupture, thus extending the effective load bearing region. A very good agreement is obtained between measurements and predictions.
Description: This is an Open Access Article. It is published by Wiley under the Creative Commons Attribution 4.0 International Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/
Sponsor: The authors would like to express their gratitude to the financial support provided by Lloyd's Register Foundation (LRF), which is extended through the International Institute for Cavitation Research (ICR: http://www.cavitation-institute.org/) to this project. The authors would also like to acknowledge the UK Engineering and Physical Sciences Research Council (EPSRC) for the Encyclopaedic Program Grant (www.encycloapedic.org) as some of their research findings are used in this research.
Version: Published
DOI: 10.1002/ls.1414
URI: https://dspace.lboro.ac.uk/2134/28387
Publisher Link: https://doi.org/10.1002/ls.1414
ISSN: 0954-0075
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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