High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine Cylinder

The paper presents a 3D model of the processes taking place in the cylinder of a large 4-stroke marine engine. The model is based on CFD calculations performed on the moving mesh. The modelling range includes the full duty cycle (720° crankshaft position) and the complete geometry of the cylinder wi...

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Main Authors: Cuper-Przybylska Dominika, Nguyen Van Nhanh, Nam Cao Dao, Kowalski Jerzy
Format: Article
Language:English
Published: Sciendo 2023-06-01
Series:Polish Maritime Research
Subjects:
Online Access:https://doi.org/10.2478/pomr-2023-0021
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author Cuper-Przybylska Dominika
Nguyen Van Nhanh
Nam Cao Dao
Kowalski Jerzy
author_facet Cuper-Przybylska Dominika
Nguyen Van Nhanh
Nam Cao Dao
Kowalski Jerzy
author_sort Cuper-Przybylska Dominika
collection DOAJ
description The paper presents a 3D model of the processes taking place in the cylinder of a large 4-stroke marine engine. The model is based on CFD calculations performed on the moving mesh. The modelling range includes the full duty cycle (720° crankshaft position) and the complete geometry of the cylinder with inlet and exhaust ducts. The input data, boundary conditions and validation data were obtained by direct measurements on the real object. Fuel injection characteristics were obtained by Mie scattering measurements in a fixed-volume chamber. The modelling results have been validated in terms of the pressure characteristics of the engine’s cylinder within the entire range of its loads. The mean error did not exceed 1.42% for the maximum combustion pressure and 1.13% for the MIP (Mean Indicated Pressure). The model was also positively validated in terms of the O2 and NOx content of the exhaust gas. The mean error in this case was 1.2% for NOx fractions in the exhaust gas and 0.4% for O2 fractions. The complete model data has been made available in the research data repository on an open access basis.
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spelling doaj.art-d1586c6636114b18bcd0750d37417d1e2023-07-24T11:20:19ZengSciendoPolish Maritime Research2083-74292023-06-01302616710.2478/pomr-2023-0021High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine CylinderCuper-Przybylska Dominika0Nguyen Van Nhanh1Nam Cao Dao2Kowalski Jerzy31Central Office of Measures POLAND, Poland2Institute of Engineering, HUTECH University, Ho Chi Minh City, Viet Nam3Institute of Mechanical Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam4Gdansk University of Technology, PolandThe paper presents a 3D model of the processes taking place in the cylinder of a large 4-stroke marine engine. The model is based on CFD calculations performed on the moving mesh. The modelling range includes the full duty cycle (720° crankshaft position) and the complete geometry of the cylinder with inlet and exhaust ducts. The input data, boundary conditions and validation data were obtained by direct measurements on the real object. Fuel injection characteristics were obtained by Mie scattering measurements in a fixed-volume chamber. The modelling results have been validated in terms of the pressure characteristics of the engine’s cylinder within the entire range of its loads. The mean error did not exceed 1.42% for the maximum combustion pressure and 1.13% for the MIP (Mean Indicated Pressure). The model was also positively validated in terms of the O2 and NOx content of the exhaust gas. The mean error in this case was 1.2% for NOx fractions in the exhaust gas and 0.4% for O2 fractions. The complete model data has been made available in the research data repository on an open access basis.https://doi.org/10.2478/pomr-2023-0021cfd combustion modellarge 4-stroke enginediesel engineemissionnox concentration
spellingShingle Cuper-Przybylska Dominika
Nguyen Van Nhanh
Nam Cao Dao
Kowalski Jerzy
High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine Cylinder
Polish Maritime Research
cfd combustion model
large 4-stroke engine
diesel engine
emission
nox concentration
title High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine Cylinder
title_full High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine Cylinder
title_fullStr High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine Cylinder
title_full_unstemmed High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine Cylinder
title_short High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine Cylinder
title_sort high quality multi zone and 3d cfd model of combustion in marine diesel engine cylinder
topic cfd combustion model
large 4-stroke engine
diesel engine
emission
nox concentration
url https://doi.org/10.2478/pomr-2023-0021
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AT namcaodao highqualitymultizoneand3dcfdmodelofcombustioninmarinedieselenginecylinder
AT kowalskijerzy highqualitymultizoneand3dcfdmodelofcombustioninmarinedieselenginecylinder