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Exploitation of Multi-Cycle Engine LES to Introduce Physical Perturbations in 1D Engine Models for Reproducing CCV
Technical Paper
2012-01-0127
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In spark-ignition engines, Cycle-to-Cycle Variations (CCV) limit the optimization of engine operation since they induce torque variations and the occurrence of misfire and/or knock. A mean for limiting the related negative impact of CCV on fuel consumption and emissions would be control strategies able to address them. At present, engine simulation codes used for control purposes can only describe CCV linked to variations of gas exchanges in the air loop. CCV of the in-cylinder flow motion cannot be naturally captured by classical quasi-dimensional combustion chamber models. A convenient way to mimic CCV is to impose stochastic distributions of the combustion model parameters. Nevertheless, it is not always clear if these perturbations have physical bases as well as realistic ranges of variation. On the other hand, Large-Eddy Simulation (LES) is a natural tool to access local 3D information (flow motion, composition, thermodynamics etc.) at any time and to predict their cyclic variability. The idea followed in this paper is to exploit multi-cycle LES of a Spark Ignition engine in motored operation to analyze the CCV origins and the physical variables that vary in order to define realistic distributions of these quantities. These distributions are implemented in a 1D engine model to simulate various engine operating conditions. It is shown that this methodology allows distinguishing stable from unstable operations. Such engine models can be useful for control purposes aiming at limiting the negative impacts of CCV.
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Pera, C., Richard, S., and Angelberger, C., "Exploitation of Multi-Cycle Engine LES to Introduce Physical Perturbations in 1D Engine Models for Reproducing CCV," SAE Technical Paper 2012-01-0127, 2012, https://doi.org/10.4271/2012-01-0127.Also In
References
- Young, M. “Cyclic Dispersion in the Homogeneous-Charge Spark-Ignition Engine a Literature Survey,” SAE Technical Paper 810020 1981 10.4271/810020
- Le Coz, J. F. “Cycle-to-Cycle Correlations Between Flow Field and Combustion Initiation in an S.I. Engine,” SAE Technical Paper 920517 1992 10.4271/920517
- Johansson, B. “Cycle to Cycle Variations in SI Engines - The Effects of Fluid Flow and Gas Composition in the Vicinity of the Spark Plug on Early Combustion,” SAE Technical Paper 962084 1996 10.4271/962084
- Ozdor, N. Dugler, M. Sher, E. “Cyclic Variability in Spark Ignition Engines, A Literature Survey,” SAE Technical Paper 940987 1994 10.4271/940987
- Lee, K.-H. Kim, K. “Influence of initial combustion in SI engine on following combustion stage and cycle-by-cycle variations in combustion process” Int. J. Automotive Technol. 2 1 25 31 2001
- Malbec, L. Le Berr, F. Richard, S. Font, G. Albrecht, A. “Modelling Turbocharged Spark-Ignition Engines: Towards Predictive Real Time Simulators,” SAE Technical Paper 2009-01-0675 2009 10.4271/2009-01-0675
- Le Berr, F. Alix, G. Richard, S. Lafossas, F. et al. “Powertrain Simulation Tools and Application to the Development of a SI Engine Concept Car,” SAE Technical Paper 2008-01-0356 2008 10.4271/2008-01-0356
- Abdi Aghdam, E. Burluka, A. Hattrell, T. Liu, K. et al. “Study of Cyclic Variation in an SI Engine Using Quasi-Dimensional Combustion Model,” SAE Technical Paper 2007-01-0939 2007 10.4271/2007-01-0939
- Ball, J. Stone, C. Raine, R. “A Technique for Estimating Completeness of Combustion and its Use in Modeling Cycle-By- Cycle Variations in Combustion,” SAE Technical Paper 2000-01-0953 2000 10.4271/2000-01-0953
- Dai, W. Trigui, N. Lu, Y. “Modeling of Cyclic Variations in Spark Ignition Engines,” SAE Technical Paper 2000-01-2036 2000 10.4271/2000-01-2036
- Mehrani, P. Watson, H. C. “Modeling the Effects of Mixture Composition on Cyclic Variability,” SAE Technical Paper 2007-01-0672 2007 10.4271/2007-01-0672
- Stone, C. Brown, A. Beckwith, P. “Cycle-by-Cycle Variations in Spark Ignition Engine Combustion - Part II: Modeling of Flame Kernel Displacement as a Cause of Cycle-by-Cycle Variations,” SAE Technical Paper 960613 1996 10.4271/960613
- Bhave, A. Kraft, M. Montorsi, L. Mauss, F. “Modelling a Dual-Fuelled Multi-Cylinder HCCI Engine Using a PDF Based Engine Cycle Simulator,” SAE Technical Paper 2004-01-0561 2004 10.4271/2004-01-0561
- Pera, C. Angelberger, C. “Large Eddy Simulation of a Motored Single-Cylinder Engine Using System Simulation to Define Boundary Conditions: Methodology and Validation,” SAE Int. J. Engines 4 1 948 963 2011 10.4271/2011-01-0834
- Goryntsev, D. Sadiki, A. Klein, M. Janicka, J. “Large Eddy Simulation based analusis of the effects of cycle-to-cycle variations on air-fuel mixing in realistic DISI IC-engines” Proc. Combust. Inst. 32 2759 2766 2009
- Adomeit, P. Lang, O. Pischinger, S. Aymanns, R. et al. “Analysis of Cyclic Fluctuations of Charge Motion and Mixture Formation in a DISI Engine in Stratified Operation,” SAE Technical Paper 2007-01-1412 2007 10.4271/2007-01-1412
- Vermorel, O. Richard, S. Colin, O. Angelberger, C. Veynante, D. “Towards the understanding of cyclic variability in a spark ignited engine using mulit-cycle LES” Combust. Flame 158 8 1525 1541 2009
- Enaux, B. Granet, V. Vermorel, O. Lacour, C. Pera, C. Angelberger, C. Poinsot, T. “LES study of cycle-to-cycle variations in a spark ignition engine” Proc. Combust. Inst. 33 2 3115 3122 2011
- Granet, V. Vermorel, O. Lacour, C. Enaux, B. Dugué, V. Poinsot, T. “Large Eddy Simulation and experimental study of cycle-to-cycle variations of stable and unstable operating points in a spark ignition engine” Combust. Flame 2011
- Richard, S. Bougrine, S. Font, G. Lafossas, F-A. Le Berr, F. “On the reduction of a 3D CFD combustion model to build a physical 0D model for simulating heat release, knock and pollutants in SI engines” Oil Gas Sci. Technol. 64 3 223 242 2009
- Colin, O. Benkenida, A. Angelberger, C. “3D modeling of mixing, Ignition and combustion phenomena in highly stratified gasoline engines” Oil Gas Sci. Technol. 58 1 47 62 2003
- Lacour, C. PhD Pera, C. “An Experimental Database Dedicated to the Study and Modeling of Cyclic Variability in Spark-Ignition Engines with LES,” SAE Technical Paper 2011-01-1282 2011 10.4271/2011-01-1282
- Gourdain, N. Gicquel, L. Montagnac, M. Vermorel, O. Gazaix, M. Staffelbach, G. Garcia, M. Boussuge, J.F. Poinsot, T. “High performance parallel computing of flows in complex geometries - part I: methods” Comput. Sci. Discovery 015003 2 26 2009
- Gourdain, N. Gicquel, L. Montagnac, M. Vermorel, O. Gazaix, M. Staffelbach, G. Garcia, M. Boussuge, J.F. Poinsot, T. “High performance parallel computing of flows in complex geometries - part II: applications” Comput. Sci. Discovery 015004 2 28 2009
- Poinsot, T. Lele, S. “Boundary conditions for direct simulations of compressible viscous flows” J. Comput. Phys. 101 1 104 129 1992
- Heywood, J. “Internal combustion engine fundamentals” McGraw-Hill New York, NY, USA 1988
- Woschni, G. “Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine,” SAE Technical Paper 670931 1967 10.4271/670931
- Metghalchi, M. Keck, J.C. “Burning velocities of mixtures of air with methanol, iso-octane and indolene at high pressure and temperature Combust. Flame 48 191 210 1982
- Charlette, F. Meneveau, C. Veynante, D. “A power law flame wrinkling model for LES of premixed turbulent combustion” Combust. Flame 131 159 180 2002
- Blint, R.J. “The relationship of the laminar flame width to flame speed” Combust. Sci. Technol. 49 79 92 1986
- Poulos, S. G. Heywood, J. B. “The Effect of Chamber Geometry on Spark Ignition Engine Combustion,” SAE Technical Paper 830334 1983 10.4271/830334
- Bozza, F. Fontana, G. Galloni, E. Torella, E. “3D-1D Analyses of the Turbulent Flow Field, Burning Speed and Knock Occurrence in a Turbocharged SI Engine,” SAE Technical Paper 2007-24-0029 2007 10.4271/2007-24-0029
- Celik, I. Yavuz, I. Smirnov, A. Smith, J. Amin, E. Gel, A. “Prediction of in-cylinder turbulence for IC engines” Combust. Sci. Technol. 153 339 368 2000
- Drake, M. Haworth, D. “Advanced gasoline engine development using optical diagnostics and numerical modeling” Proc. Combust. Inst. 31 99 124 2007
- Dugué, V. Veynante, D. Gauchet, N. “Applicability of Large Eddy Simulation to the Fluid Mechanics in a Real Engine Configuration by Means of an Industrial Code,” SAE Technical Paper 2006-01-1194 2006 10.4271/2006-01-1194
- Maly, R. Vogel, M. “Initiation and propagation of flame fronts in lean CH4-air mixtures by the three modes of the ignition spark” Proc. Combust. Inst. 17 1 821 831 1979