3d mesh model for rans numerical research on marine 4-stroke engine

• Autorzy: Kowalski J. , Jaworski P.
• Języki publikacji: EN

Abstrakty

EN

The article consist the 3d mesh analysis prepared for simulation of the processes in combustion chamber of marine compression ignition engine. The three moving meshes models where prepared: A–mesh for engine cycle work simulation; B –mesh of combustion chamber volume for work stroke simulations, no valves included; C-mesh of combustion chamber including mountings screw whole for work stroke simulations , no valves including. Prepared mesh where used for numerical simulations of injection and combustion processes in engine combustion chamber. Type C model, even if the total number of cells is lower in comparison to B model, result in calculation time increase. B and C models are solution for fast and robust validation of injection and auto ignition model parameters. Type A model is only one suitable for full cycle simulation. Only with accurate initial and boundary conditions the qualitative results of the injection, mixing and combustion process can be obtain on mesh type B and C.

Słowa kluczowe

EN

CFD; RANS; marine engine; moving mesh; 3d mesh

PL

CFD; RANS; silniki morskie; ruchy siatki; siatki 3D

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2014
• Tom: Vol. 9, no 1
• Strony: 87--94
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Kowalski J.

• Gdynia Maritime University Department of Engineering Sciences Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone], fax: [phone]

autor

Jaworski P.

• Warsaw University of Technology , Institute of Heat Engineering ul. Nowowiejska 21/25, 00-655 Warsaw, Poland tel.: [phone]

Bibliografia

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• [4] Devesa A. , Moreau J. , Helie J., Faivre V., Poinsot T., Initial conditions for Large Eddy Simulations of piston engine flows, Computers & Fluids , Vol.36 pp. 701-713, 2007.
• [5] Heywood J. B., Internal Combustion Engine Fundamentals, McGraw -Hill 1988.
• [6] Kowalski J., Laboratory study on influence of the exhaust duct throttling on exhaust gas composition in marine four -stroke diesel engine, Journal of Polish CIMAC Vol. 7, No 1. pp. 109-115, Gdańsk 2012.
• [7] Kowalski J., Assessment of the 3-D combustion model in the marine 4-stroke engine, Journal of Polish CIMAC Vol. 9, 2014.(in press)