A 1D–3D Approach for Fast Numerical Analysis of the Flow Characteristics of a Diesel Engine Exhaust Gas

It is necessary to analyze the intake/exhaust gas flow of a diesel engine when turbocharger matching and when installing emission control devices such as exhaust gas recirculation (EGR), selective catalytic reduction (SCR), and scrubbers. Analyzing the intake/exhaust gas flow using a 3D approach can...

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Bibliographic Details
Published in:Machines (Basel) 2021-10, Vol.9 (10), p.239
Main Author: Kong, Kyeong-Ju
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Chemical reduction
Control equipment
Design optimization
diesel engine
Diesel engines
Emission analysis
Emissions control
exhaust gas
Exhaust gases
Exhaust systems
Explosions
fast numerical analysis
Flow characteristics
Gas flow
Gases
Mathematical models
Natural gas
Numerical analysis
one-dimensional–three-dimensional approach
Selective catalytic reduction
Simulation
Software
Sulfur content
Superchargers
Systems analysis
Three dimensional flow
Turbines
Valves
Velocity
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Summary:It is necessary to analyze the intake/exhaust gas flow of a diesel engine when turbocharger matching and when installing emission control devices such as exhaust gas recirculation (EGR), selective catalytic reduction (SCR), and scrubbers. Analyzing the intake/exhaust gas flow using a 3D approach can use various analytical models, but it requires a significant amount of time to perform the computation. An approach that combines 1D and 3D is a fast numerical analysis method that can utilize the analysis models of the 3D approach and obtain accurate calculation results. In this study, the flow characteristics of the exhaust gas were analyzed using a 1D–3D coupling algorithm to analyze the unsteady gas flow of a diesel engine, and whether the 1D–3D approach was suitable for analyzing exhaust systems was evaluated. The accuracy of the numerical analysis results was verified by comparison with the experimental results, and the flow characteristics of various shapes of the exhaust system of a diesel engine could be analyzed. Numerical analysis using the 1D–3D approach was able to be computed about 300 times faster than the 3D approach, and it was a method that could be used for research focused on the exhaust system. In addition, since it could quickly and accurately calculate intake/exhaust gas flow, it was expected to be used as a numerical analysis method suitable for analyzing the interaction of diesel engines with emission control devices and turbochargers.
ISSN:2075-1702
2075-1702
DOI:10.3390/machines9100239