Han, Y, Meng, Q orcid.org/0000-0002-6708-5585 and de Boer, G orcid.org/0000-0002-5647-1771 (2022) Two-scale homogenization of hydrodynamic lubrication in a mechanical seal with isotropic roughness based on the Elrod cavitation algorithm. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 236 (3). pp. 359-385. ISSN 1350-6501
Abstract
A two-scale homogenization method for modelling the hydrodynamic lubrication of mechanical seals with isotropic roughness was developed and presented the influence of surface topography coupled into the lubricating domain. A linearization approach was derived to link the effects of surface topography across disparate scales. Solutions were calculated in a polar coordinate system derived based on the Elrod cavitation algorithm and were determined using homogenization of periodic simulations describing the lubrication of a series of surface topographical features. Solutions obtained for the hydrodynamic lubrication regime showed that the two-scale homogenization approach agreed well with lubrication theory in the case without topography. Varying topography amplitude demonstrated that the presence of surface topography improved tribological performance for a mechanical seal in terms of increasing load-carrying capacity and reducing friction coefficient in the radial direction. A Stribeck curve analysis was conducted, which indicated that including surface topography led to an increase in load-carrying capacity and a reduction in friction. A study of macro-scale surface waviness showed that the micro-scale variations observed were smaller in magnitude but cannot be obtained without the two-scale method and cause significant changes in the tribological performance.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © IMechE 2021. This is an author produced version of a conference paper published in Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Seals, hydrodynamic lubrication, cavitation, surface topography, numerical simulation |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Medical and Biological Engineering (iMBE) (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 27 Apr 2021 08:26 |
Last Modified: | 18 Nov 2022 13:41 |
Status: | Published |
Publisher: | SAGE Publications |
Identification Number: | 10.1177/13506501211017673 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:173343 |