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Basic Investigations on the Prediction of Spray-Wall and Spray-Fluid Interaction for a GDI Combustion Process
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 28, 2010 by SAE International in United States
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This publication covers investigations on different 3D CFD models for the description of the spray wall and droplet-fluid interaction and the influence of these models on the mixture formation calculation results. Basic experimental investigations in a spray chamber and a flow tunnel as well as the corresponding 3D CFD simulation were conducted in order to clarify the prediction quality of the physical phenomena of spray-wall and spray-fluid interaction by the simulation. Influencing parameters such as the piston top temperature, piston bowl geometry, soot deposits on the piston top as well as flow velocity are investigated. This paper provides a direct link between the underlying simulation models of the mixture formation and actual real world combustion system development processes - underlining the importance of a close interaction of the model calibration and the development process. The results show the general dependency on experimental calibration and verification of the simulation models for different engine operation conditions.
- Martin Abart - Graz University of Technology
- Stephan Schmidt - Graz University of Technology
- Oliver Schoegl - Graz University of Technology
- Alexander Trattner - Graz University of Technology
- Roland Kirchberger - Graz University of Technology
- Helmut Eichlseder - Graz University of Technology
- Dalibor Jajcevic - Graz University of Technology
CitationAbart, M., Schmidt, S., Schoegl, O., Trattner, A. et al., "Basic Investigations on the Prediction of Spray-Wall and Spray-Fluid Interaction for a GDI Combustion Process," SAE Technical Paper 2010-32-0030, 2010, https://doi.org/10.4271/2010-32-0030.
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