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

Dominika Cuper-Przybylska; Van Nhanh Nguyen; Cao Dao Nam; Jerzy Kowalski

doi:10.2478/pomr-2023-0021

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

Abstract

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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Authors (4)

Dominika Cuper-Przybylska
Van Nhanh Nguyen
- Institute of Engineering, HUTECH University, Ho Chi Minh City, Viet Nam
Cao Dao Nam
- 3 Institute of Mechanical Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam
Jerzy Kowalski dr hab. inż.

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DOI:: Digital Object Identifier (open in new tab) 10.2478/pomr-2023-0021
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Keywords

CFD COMBUSTION MODEL, LARGE 4-STROKE ENGINE, DIESEL ENGINE, EMISSION, NOX CONCENTRATION

Details

Category:

Articles

Type:

artykuły w czasopismach

Published in:

Polish Maritime Research no. 30, pages 61 - 67,
ISSN: 1233-2585

Language:

English

Publication year:

2023

Bibliographic description:

Cuper-Przybylska D., Nguyen V. N., Nam C. D., Kowalski J.: High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine Cylinder// Polish Maritime Research -Vol. 30,iss. 2 (2023), s.61-67

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