Cavitation induced starvation for piston-ring/liner tribological conjunction.
Date published
2011-04
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Journal Title
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Volume Title
Publisher
Elsevier
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Type
Article
ISSN
0301-679X
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Citation
W.W.F.Chong, M.Teodorescu, N.D.Vaughan. Cavitation induced starvation for piston-ring/liner tribological conjunction. Tribology International, Volume 44, Issue 4, April 2011, Pages 483–497
Abstract
The study investigates the mechanism of ring-liner lubrication in the vicinity of the top and bottom dead centres of an internal combustion engine. Predicting lubricant transient behaviour is critical when the inlet reversal leads to thin films and inherent metal-to-metal interaction. It was found that the cavitation, which is located at the trailing edge of the contact before reversal, briefly survives after reversal as a confined bubble at the leading edge. This depletes the film promoting starvation. Several algorithms were compared. It is concluded that the lubricant film is thinner than initially thought.
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Github
Keywords
Pistonring, lubrication, tribology, Elrod cavitation algorithm, cavitation, starvation