Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4986331 | Tribology International | 2016 | 25 Pages |
Abstract
The 2D CFD-model of piston assembly was built up to analyze the mass transport through the piston-liner crevices of a diesel engine. Calculations of piston ring dynamics are performed by means of the balance of forces solved in CFD. An elastic-plastic contact model is incorporated in the CFD-model to calculate the asperity contact and boundary friction in rings/liner/grooves interfaces. The hydrodynamic friction is calculated by means of CFD. An analytical approach is implemented in 2D CFD-model to consider the mass-flow through the ring gaps allowing the estimation of inter-ring pressures and blowby into the crankcase. The 2D CFD-model can be used to study the influence of the various ring-pack design parameters on the ring friction, blowby and oil transport.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Pavlo Lyubarskyy, Dirk Bartel,