Assessment of CFD Methods for Large Diesel Engines Equipped with a Common Rail Injection System 2000-01-0948
A KIVA-based CFD tool has been utilized to simulate the effect of a Common-Rail injection system applied to a large, uniflow-scavenged, two-stroke diesel engine. In particular, predictions for variations of injection pressure and injection duration have been validated with experimental data. The computational models have been evaluated according to their predictive capabilities of the combustion behavior reflected by the pressure and heat release rate history and the effects on nitric oxide formation and wall temperature trends.
In general, the predicted trends are in good agreement with the experimental observations, thus demonstrating the potential of CFD as a design tool for the development of large diesel engines equipped with Common-Rail injection. Existing deficiencies are identified and can be explained in terms of model limitations, specifically with respect to the description of turbulence and combustion chemistry. Approaches appropriate to overcome the present limitations and further improve the predictive capabilities are proposed.
Citation: Rodatz, P., Weisser, G., and Tanner, F., "Assessment of CFD Methods for Large Diesel Engines Equipped with a Common Rail Injection System," SAE Technical Paper 2000-01-0948, 2000, https://doi.org/10.4271/2000-01-0948. Download Citation
Author(s):
Paul Rodatz, German Weisser, Franz X. Tanner
Affiliated:
Swiss Federal Institute of Technology (ETH), Wärtsilä NSD Switzerland, Michigan Technological University
Pages: 14
Event:
SAE 2000 World Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Advances in Diesel Fuel Injection and Sprays-SP-1498, SAE 2000 Transactions Journal of Engines-V109-3
Related Topics:
Diesel / compression ignition engines
Computer simulation
Combustion and combustion processes
Computational fluid dynamics
Two stroke engines
Historical reference
Technical review
Turbulence
Pressure
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