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3D Modelling of Combustion and Pollutants in a 4-Valve SI Engine; Effect of Fuel and Residuals Distribution and Spark Location
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Abstract
The SI engine combustion model LI-CFM introduced by Boudier et, al. (1992) [8] is extended to deal with actual engines. New models are proposed to simulate ignition with convection at the spark and flame-wall interaction. The scalar properties of the unburnt gases within the combustion zone are computed. This allows for the computation of flame propagation in temperature, fuel and residual gas stratified charges. A model for NO and CO formation is introduced. It is based on a conditional burnt/unburnt averaging of the reaction rates. Pollutants are created at the flamelet level and evolve in the burnt, gases using a mixed equilibrium/kinetic scheme. All these physical models are implemented in a multi-block version of the Kiva 2 code, KMB. This code is used to simulate a 4-valve engine including intake ports. Initial and boundary conditions are obtained from a ID acoustic code. Flow, combustion and pollutants are computed for various operating conditions taking into account variations of fuel distribution, dilution by residual gases, and spark location. The results are compared with measurements.
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Duclos, J., Bruneaux, G., and Baritaud, T., "3D Modelling of Combustion and Pollutants in a 4-Valve SI Engine; Effect of Fuel and Residuals Distribution and Spark Location," SAE Technical Paper 961964, 1996, https://doi.org/10.4271/961964.Also In
References
- Amsden A.A. O'Rourke P.J. Butler T.D. Report LA-11560-MS Los Alamos National Laboratory 1989
- Baritaud T. SAE Paper 892098 1987
- Baritaud T. A. Green R.M. SAE Paper 860025 1986
- Baritaud T.A. Heinze T.A. SAE Paper 922355 1992
- Baritaud T. Duclos J.M. Fusco A. 26th Symposium (International) on Combustion The Combustion Institute
- Baum M. 1995
- Blint R. J. Combust. Sci. & Tech 49 79 1986
- Boudier P. Henriot S. Poinsot T. Baritaud T. 24th Symposium (International) on Combustion The Combustion Institute 1992 503 510
- Braumer A. Sick V. Wolfrum J. Drewes V. Zahn M. Maly R. SAE Paper 952462 1995
- Bruneaux G. 1996
- Deschamps B. Snyder R. Baritaud T. SAE Paper 941993 1994
- Diwakar R. SAE Paper 84320 1984
- Duclos J.M. Veynante D. Poinsot T. Combustion and Flame 95 101 118 1993
- Gosman A.D. Marooney C.J. Weller H.G. COMODIA 59 64 1990
- Habchi C. Torres A. First European CFD Conferences proceedings 502 512 1992
- Herweg R. Maly R.R. SAE Paper 922243 1992
- Metghalchi M. Keck J. Combustion and Flame 48 191 210
- Le Coz J.F. Henriot S. Pinchon P. SAE Paper 900056 1990
- zur Loye A. O. Bracco F. V. SAE Paper 870454 1987
- Meneveau C. Poinsot T. Combustion and Flame 86 311 332
- Meintjes K. Morgan A.P. General Motors Research Publications, GMR-5827 1987
- Poinsot T. Haworth D. Bruneaux G. Combustion and Flame 95 118 133 1993
- Tatschl R. Wieser K. Reitbauer R. COMODIA 139 149 1994
- Torres A. Henriot S. SAE Paper 961959 1996
- Torres A. Henriot S. COMODIA 151 156 1994
- Trouve A. Rapport IFP 41964 1995
- Weller H.G. Uslu S. Gosman A.D. Maly R.R. Herweg R. Heel B. COMODIA 1994
- Wichman I. Bruneaux G. Combustion and flame 103 293 310 1995
- Witze P. O. Vilchis F. R. SAE Paper 810226 1981