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LES Simulation of Direct Injection SI-Engine In-Cylinder Flow
Technical Paper
2012-01-0138
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The present paper deals with the application of the LES approach to in-cylinder flow modeling. The main target is to study cycle-to-cycle variability (CCV) using 3D-CFD simulation. The engine model is based on a spark-ignited single-cylinder research engine. The results presented in this paper cover the motored regime aiming at analysis of the cycle-resolved local flow properties at the spark plug close to firing top dead center. The results presented in this paper suggest that the LES approach adopted in the present study is working well and that it predicts CCV and that the qualitative trends are in-line with established knowledge of internal combustion engine (ICE) in-cylinder flow. The results are evaluated from a statistical point of view based on calculations of many consecutive cycles (at least 10). Special attention is paid to local properties at the spark plug as these local conditions are supposed to strongly influence early phase of combustion process (early flame kernel development). Important conclusion is that the cold-flow local properties at the spark-plug (motored regime) is the source of significant CCV, which is supposed to be amplified when combustion is considered.
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Vitek, O., Macek, J., Tatschl, R., Pavlovic, Z. et al., "LES Simulation of Direct Injection SI-Engine In-Cylinder Flow," SAE Technical Paper 2012-01-0138, 2012, https://doi.org/10.4271/2012-01-0138.Also In
References
- Naitoh, K. ltoh, T. Takagi, Y. Kuwahara, K. “Large Eddy Simulation of Premixed-Flame in Engine based on the Multi-Level Formulation and the Renormalization Group Theory,” SAE Technical Paper 920590 1992 10.4271/920590
- Lee, D. Pomraning, E. Rutland, C. “LES Modeling of Diesel Engines,” SAE Technical Paper 2002-01-2779 2002 10.4271/2002-01-2779
- Devesa, A. Moreau, J. Poinsot, T. Helie, J. “Large Eddy Simulations of Jet/Tumble Interaction in a GDI Model Engine Flow” SAE Technical Paper 2004-01-1997 2004 10.4271/2004-01-1997
- Moureau, V. Barton, I. Angelberger, C. Poinsot, T. “Towards Large Eddy Simulation in Internal-Combustion Engines: Simulation of a Compressed Tumble Flow,” SAE Technical Paper 2004-01-1995 2004 10.4271/2004-01-1995
- Thobois, L. Rymer, G. Soulères, T. Poinsot, T. “Large-Eddy Simulation in IC Engine Geometries,” SAE Technical Paper 2004-01-1854 2004 10.4271/2004-01-1854
- Brusiani, F. Forte, C. Bianchi, G. M. “Assessment of a Numerical Methodology for Large Eddy Simulation of ICE Wall Bounded Non-Reactive Flows,” SAE Technical Paper 2007-01-4145 2007 10.4271/2007-01-4145
- Brusiani, F. Bianchi, G. M. “LES Simulation of ICE Non-Reactive Flows in Fixed Grids,” SAE Technical Paper 2008-01-0959 2008 10.4271/2008-01-0959
- Hori, T. Kuge, T. Senda, J. Fujimoto, H. “Effect of Convective Schemes on LES of Fuel Spray by Use of KIVALES,” SAE Technical Paper 2008-01-0930 2008 10.4271/2008-01-0930
- Zhang, Y. Ghandhi, J. Petersen, B. Rutland, C. “Large Eddy Simulation of Scalar Dissipation Rate in an Internal Combustion Engine,” SAE Technical Paper 2010-01-0625 2010 10/4271/2010-01-0625
- Yu, R. Bai, X. S. Hildingsson, L. Hultqvist, A. Miles, P. “Numerical and Experimental Investigation of Turbulent Flows in a Diesel Engine,” SAE Technical Paper 2006-01-3436 2006 10.4271/2006-01-3436
- Joelsson, T. Yu, R. Bai, X. S. Takada, N. Sakata, I. Yanagihara, H. Lindén, J. Richter, M. Alden, M. Johansson, B. “Flow and Temperature Distribution in an Experimental Engine: LES Studies and Thermographic Imaging,” SAE Technical Paper 2010-01-2237 2010 10.4271/2010-01-2237
- 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
- Rezaei, R. Pischinger, S. Ewald, J. Adomeit, P. “A New CFD Approach for Assessment of Swirl Flow Pattern in HSDI Diesel Engines,” SAE Technical Paper 2010-32-0037 2010 10.4271/2010-32-0037
- Hu, B. Rutland, C. “Flamelet Modeling with LES for Diesel Engine Simulations,” SAE Technical Paper 2006-01-0058 2006 10.4271/2006-01-0058
- Jhavar, R. Rutland, C. “Using Large Eddy Simulations to Study Mixing Effects in Early Injection Diesel Engine Combustion,” SAE Technical Paper 2006-01-0871 2006 10.4271/2006-01-0871
- Hu, B. Jhavar, R. Singh, S. Reitz, R. Rutland, C. “Combustion Modeling of Diesel Combustion with Partially Premixed Conditions,” SAE Technical Paper 2007-01-0163 2007 10.4271/2007-01-0163
- Banerjee, S. Liang, T. Rutland, C. Hu, B. “Validation of an LES Multi Mode Combustion Model for Diesel Combustion,” SAE Technical Paper 2010-01-0361 2010 10.4271/2010-01-0361
- Banerjee, S. Rutland, C. “Validation of an LES Multi Mode Combustion Model for Diesel Combustion,” SAE Technical Paper 2011-01-0823 2011 10.4271/2011-01-0823
- Vermorel, O. Richard, S. Colin, O. Angelberger, C. Benkenida, A. Veynante, D. “Multi-Cycle LES Simulations of Flow and Combustion in a PFI SI 4-Valve Production Engine,” SAE Technical Paper 2011-01-0151 2011 10.4271/2007-01-0151
- Lacour, C. Pera, C. “An Experimental Database Dedicated to the Study and Modelling of Cyclic Variability in Spark-Ignition Engines with LES,” SAE Technical Paper 2011-01-1282 2011 10.4271/2011-01-1282
- Laget, O. Reveille, B. Martinez, L. Truffin, K. Habchi, C. Angelberger, C. “LES Calculations of a Four Cylinder Engine,” SAE Technical Paper 2011-01-0832 2011 10.4271/2011-01-0832
- AVL AST FIRE Manual v2010 AVL List GmbH Graz 2010
- Smagorinsky, J. “General Circulation Experiments with the Primitive Equations” Mon. Weather Rev. 91 3 99 164 1963
- Kobayashi, H. “The subgrid-scale models based on coherent structures for rotating homogeneous turbulence and turbulent channel flow.” Physics of Fluids 17 2005
- Kobayashi, H. Ham, F. Wu, X. “Application of a local SGS model based on coherent structures to complex geometries.” Int. J. of Heat and Fluid Flow 29 640 653 2008
- Iwamoto, K. Suzuki, Y. Kasagi, N. “Reynolds number effect on wall turbulence: Toward effective feedback control” Int. J. Heat Fluid Flow 23 678 689 2002
- Dahms, R. N. Drake, M. C. Fansler, T. D. Kuo, T.-W. Peters, N. “Understanding Ignition Processes in Spray-guided Gasoline Engines using High-speed Imaging and the Extended Spark-ignition Model SparkCIMM. Part A: Spark Channel Processes and the Turbulent Flame Front Propagation” Combustion and Flame 158 2229 2244 2011
- Vítek, O. Mareš, B. Macek, J. “Application of LES Turbulence Model to Motored 4-stroke Internal Combustion Engine” Colloquium Fluid Dynamics 2010 [CD-ROM] 978-80-87012-27-7
- FIRE 2010 [DVD] AVL List GmbH 2009
- FIRE 2010SP1 [DVD] AVL List GmbH 2010