Numerical Simulation of the Gas Flow through the Piston Ring Pack of an Internal Combustion Engine

Oliva, Alexander; Held, Stefan; Herdt, Anatoli; Wachtmeister, Georg

doi:10.4271/2015-01-1302

Cited by 6 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…al. introduced a 2D CFD model of the ring-pack in [57]. The model covers the area of the top land up to the piston skirt and accounts for the prescribed ring movement as well as temperature and pressure profiles from the combustion chamber as a boundary condition.…”

Section: Introductionmentioning

confidence: 99%

2D CFD-model of the piston assembly in a diesel engine for the analysis of piston ring dynamics, mass transport and friction

Lyubarskyy

Bartel

2016

Tribology International

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

2D CFD-model of the piston assembly in a diesel engine for the analysis of piston ring dynamics, mass transport and friction

Lyubarskyy

Bartel

2016

Tribology International

View full text Add to dashboard Cite

“…This allows for reducing the economic cost of computing and simulation times. Despite the simplification of the 2D model compared to the 3D, the investigations Oliva et al [43,44] indicate that 2D simulations adequately represent the physical behavior of fluids.…”

Section: Simulation Methodologymentioning

confidence: 99%

Effect of the Geometric Profile of Top Ring on the Tribological Characteristics of a Low-Displacement Diesel Engine

2020

View full text Add to dashboard Cite

The present study aims to analyze the influence of the geometric profile of the compression ring on the tribological properties of the lubricant. Additionally, the influence of the rotation speed and the engine load on the state of the lubricant is evaluated. For this study, a single-cylinder diesel engine is taken as the basis, from which a CAD model of the combustion chamber-piston assembly was made. In addition, the conditions in the cylinder chamber were analyzed when the engine operates at a rotation speed of 3000, 3300, 3600, and 3900 rpm, and a load of 1.5, 3.0, 4.5, and 6.0 N. The calculations were developed using the OpenFOAM® simulation software. The results obtained show that changes in the geometric profile of the ring can contribute to reducing the hydrodynamic friction force by 13% and the friction force caused by roughness by 61%. This implies a decrease in the power lost by friction. In general, the modification of the geometric profile allowed a reduction of 21% in the lost power associated with friction. Additionally, it was observed that the shape of the profile allows to reduce the pressure in the lubricant by 65% and obtain a greater thickness of the lubrication film. On average, an increase of 300 rpm and 1.5 N in the speed and load of the engine causes the friction force and power losses to increase by 45% and 10%. The above results imply that the geometric profile of the compression ring can improve tribological performance in the engine, allowing a reduction in fuel and better lubricant performance.

show abstract

Experimental and simulative research advances in the piston assembly of an internal combustion engine

Kirner

Halbhuber

Uhlig

et al. 2016

Tribology International

View full text Add to dashboard Cite

Numerical Simulation of the Gas Flow through the Piston Ring Pack of an Internal Combustion Engine

Cited by 6 publications

References 4 publications

2D CFD-model of the piston assembly in a diesel engine for the analysis of piston ring dynamics, mass transport and friction

2D CFD-model of the piston assembly in a diesel engine for the analysis of piston ring dynamics, mass transport and friction

Effect of the Geometric Profile of Top Ring on the Tribological Characteristics of a Low-Displacement Diesel Engine

Experimental and simulative research advances in the piston assembly of an internal combustion engine

Contact Info

Product

Resources

About