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A model of a fuel spray parameter in a marine diesel engine
1
Faculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Poland
2
Faculty of Power and Aeronautical Engineering, Warsaw Uniwersity of Technology, Poland
Submission date: 2025-06-13
Final revision date: 2025-12-10
Acceptance date: 2025-12-11
Online publication date: 2026-01-11
Publication date: 2026-04-01
Corresponding author
Joanna Grochowalska
Faculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Gdansk, Poland
Faculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Gdansk, Poland
Combustion Engines 2026,205(2), 184-190
KEYWORDS
TOPICS
ABSTRACT
This work presents an empirical model of one of the main parameters describing fuel spray evolution in a marine Diesel engine – spray cone angle in the early stage of spray formation. The model was formulated based on experimental data obtained in a constant volume chamber with optical access. The laboratory experimental studies were carried out to determine the parameters of fuel spray in the marine Diesel engine-relevant air densities. The Mie scattering spray visualization technique was used to record the liquid fuel propagation process. Furthermore, a model of the evolution over time of spray cone angle is formulated, where the literature models of spray cone angle are defined as constant. The calculation results of the spray cone angle were verified against the experimental results of the spray cone angle.
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