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Modeling of Ignition and Early Flame Development with Respect to Large Diesel Engine Simulation
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Abstract
A recently developed auto-ignition model based on a single transport equation in combination with a reduced kinetic scheme has been validated and tested in combination with a cascade jet and droplet breakup model. The validation has been performed by comparing ignition locations and delays for various thermodynamic conditions with experimental data from a high-pressure combustion cell. Also for medium-size diesel engine applications, predictions of ignition delay are in good agreement with experimental observations.
In addition, a new approach to the modeling of the early flame development in diesel engine combustion is introduced. The reaction rate in the transition phase from the premixed to the mixing-controlled combustion mode is determined by means of a sub-grid scale model, which describes the evolution of a turbulent diffusion flame. The model has been tested during the early combustion phase of a medium-size, medium-speed DI diesel engine. This approach leads to a good reproduction of the premixed combustion peak and the transition region from premixed to mixing-controlled combustion as observed in experiments.
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Weisser, G., Tanner, F., and Boulouchos, K., "Modeling of Ignition and Early Flame Development with Respect to Large Diesel Engine Simulation," SAE Technical Paper 981451, 1998, https://doi.org/10.4271/981451.Also In
References
- Gülder, O. L. Smallwood, G. J. Snelling, D. R. Diesel Spray Structure Investigation by Laser Diffraction and Sheet Illumination SAE 920577 1992
- Lee, T.-W. Mitrovic, A. Liquid Core Structure of Pressure-Atomized Sprays via Laser Tomographic Imaging Atomization and Sprays 6 111 126 1996
- Yule, A. J. Salters, D. G. A Conductivity Probe Technique for Investigating the Breakup of Diesel Sprays Atomization and Sprays 4 41 63 1994
- Tanner, F. X. Liquid Jet Atomization and Droplet Breakup Modeling of Non-Evaporating Diesel Fuel Sprays SAE 970050 1997
- O'Rourke, P. J. Amsden, A. A. The {TAB} Method for Numerical Calculation of Spray Droplet Breakup SAE 872089 1987
- Liu A.B. Mather D. Reitz R.D. Modeling the effects of drop drag and breakup of fuel sprays SAE 930072 1993
- Liu, A. B. Reitz, R. D. Mechanisms of Air-Assisted Liquid Atomization Atomization and Sprays 3 55 75 1993
- Hwang, S. S. Liu, Z. Reitz, R. D. Breakup Mechanisms and Drag Coefficients of High-Speed Vaporizing Liquid Drops Atomization and Sprays 6 353 376 1996
- Weisser, G. Tanner, F.X. Boulouchos, K. Towards CRFD-Simulation of Large Diesel Engines: Modeling Approaches for Key Processes Internal Combustion Engines Experiments and Modeling 1997
- Tanner, F. X. Weisser, G. Simulation of Liquid Jet Atomization for Fuel Sprays by Means of a Cascade Drop Breakup Model SAE 980808 1998
- Nishida, K. Hiroyasu, H. Simplified three Dimensional Modeling of Mixture Formation and Combustion in a D.I. Diesel Engine SAE 890269 1989
- Belardini, P. Bertoli, C. Del Giacomo, N. Cameretti, M.C. A simple auto-ignition model for three-dimensional combustion computations, 3rd International Conference on Computers in Reciprocating Engines and Gas Turbines IMechE Conference Transactions 1996-1 305 315
- Müller, U.C. Aachen 1993
- Elsden, M. Gutheil, E. Nehse, M Warnatz, J. Auto-Ignition Modeling in Diesel Engines Internal Combustion Engines Experiments and Modeling 1997
- Halstead, M. Kirsh, L. Quinn, C. The Autoignition of Hydrocarbon Fuels at High Temperatures and Pressures - Fitting of a Mathematical Model Combustion and Flame 30 45 60 1977
- Inhelder J. Frouzakis C.E. Boulouchos K. A Discussion of Approaches for Predicting End-Gas Autoignition in Homogeneous Charge Engines LVV-Internal Report 93/20 1993
- Reuter, U. Aachen 1989
- Amsden, A. A. O'Rourke, P. J. Butler, T. D. KIVA II: A Computer Program for Chemically Reactive Flows with Sprays Technical Report LA-11560-MS Los Alamos National Laboratory May 1989
- Amsden, A. A. KIVA-3V: A Block-Structured KIVA Program for Engines with Vertical or Canted Valves Technical Report LA-13313-MS Los Alamos National Laboratory July 1997
- Kong, S.-C. Han, Z. Reitz, R.D. The Development and Application of a Diesel Ignition and Combustion Model for Multidimensional Engine Simulation SAE 950278 1995
- Magnussen, B.F. Hjertager, B.H. On mathematical modeling of turbulent combustion with special emphasis on soot formation and combustion 16-th Symposium (International) on Combustion 1976
- Magnussen, B.F. Eddy Dissipation Concept, XI Task Leaders Meeting - Energy Conservation in Combustion IEA 1989
- Taskinen, P. Karvinen, R. Liljenfeldt, G. Salminen, H.J. Simulation of Heavy Fuel Spray and Combustion in a Medium Speed Diesel Engine SAE 962053 1996
- Taskinen, P. Paattilammi, T. Karvinen, R. Liljenfeldt, G. Salminen, H.J. CFD Based Simulation of a Large Medium Speed Diesel Engine Internal Combustion Engines Experiments and Modeling 1997
- Burke, S.P. Schumann, T.E.W. Diffusion Flames 1st Symposium on Combustion 1928
- Bray, K.N.C Peters, N. Laminar Flamelets in Turbulent Flames Turbulent Reacting Flows Libby P.A. Williams F.A. 1994
- Stebler, H.