3D-Simulation of DI-Diesel Combustion Applying a Progress Variable Approach Accounting for Complex Chemistry 2004-01-0106
A progress variable approach for the 3D-CFD simulation of DI-Diesel combustion is introduced. Considering the Diesel-typical combustion phases of auto-ignition, premixed and diffusion combustion, for each phase, a limited number of characteristic progress variables is defined. By spatial-temporal balancing of these progress variables, the combustion process is described. Embarking on this concept, it is possible to simulate the reaction processes with detailed chemistry schemes. The combustion model is coupled with a mesh-independent Eulerian-spray model in combination with orifice resolving meshes. The comparison between experiment and simulation for various Diesel engines shows good agreement for pressure traces, heat releases and flame structures.
Citation: Steiner, R., Bauer, C., Krüger, C., Otto, F. et al., "3D-Simulation of DI-Diesel Combustion Applying a Progress Variable Approach Accounting for Complex Chemistry," SAE Technical Paper 2004-01-0106, 2004, https://doi.org/10.4271/2004-01-0106. Download Citation
R. Steiner, C. Bauer, C. Krüger, F. Otto, U. Maas
DaimlerChrysler AG, Institut für Technische Thermodynamik, University of Karlsruhe
SAE 2004 World Congress & Exhibition
Modelling: Diesel Engines, Multi-Dimensional Engine, and Vehicle and Engine Systems-SP-1826, SAE 2004 Transactions Journal of Engines-V113-3