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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/25834

Title: Influence of boundary conditions on starvation of piston ring conjunction
Authors: Bewsher, S.R.
Mohammadpour, Mahdi
Rahnejat, Homer
Offner, Gunter
Keywords: Piston compression ring
Inlet boundary condition
Starvation
Issue Date: 2017
Citation: BEWSHER, S.R. ...et al., 2017. Influence of boundary conditions on starvation of piston ring conjunction. Presented at the World Tribology Congress 2017, Beijing, China, 17-22nd Sept.
Abstract: It is important to determine realistic inlet boundary conditions to correctly predict lubricant film thickness and generated frictional power losses in all tribological conjunctions. This is also true of piston compression ring as well. A 2D hydrodynamic solver using Reynolds equation is to analyse the differences between predicted conditions with a flooded inlet and that arising from a more realistic determined zero-reverse boundary condition for lubricant flow post inlet wedge stagnation point. The case of a cylinder of a 4-cylinder 4 stroke gasoline engine, running at the engine speed of 1500rpm is considered. The results show that with a more detailed and realistic inlet boundary a significant reduction in the minimum film thickness is predicted which leads to increased friction throughout the engine cycle.
Description: This paper is in closed access.
Sponsor: This work was supported by the Engineering and Physical Sciences Research Council (EPSRC) and AVL List
Version: Submitted for publication
URI: https://dspace.lboro.ac.uk/2134/25834
Publisher Link: http://www.wtc2017.org/en
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

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