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Efficient Multidimensional Simulation of HCCI and DI Engine Combustion with Detailed Chemistry
Technical Paper
2009-01-0701
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper presents three approaches that can be used for efficient multidimensional simulations of HCCI and DI engine combustion. The first approach uses a newly developed Adaptive Multi-grid Chemistry (AMC) model. The AMC model allows a fine mesh to be used to provide adequate resolution for the spray simulation, while dramatically reducing the number of cells that need to be computed by the chemistry solver. The model has been implemented into the KIVA3v2-CHEMKIN code and it was found that computer time was reduced by a factor of ten for HCCI cases and a factor of three to four for DI cases without losing prediction accuracy. The simulation results were compared with experimental data obtained from a Honda engine operated with n-heptane under HCCI conditions for which directly measured in-cylinder temperature and H2O mole fraction data are available. The second approach to improve efficiency uses a recently developed a set of spray models which reduce numerical grid size dependencies; thus enabling the simulation of DI combustion on relatively coarse meshes to save computing time. The new spray models, including a gasjet model for the near nozzle droplet-gas momentum exchange calculations and advanced collision models, have also been implemented into the KIVA code. Reductions in computing time by a factor of ten without a significant loss in accuracy are realized for DI engine simulations through the combined use of the AMC model and the mesh-independent spray models on coarse computational meshes. Finally, the third approach combines the AMC model with the mesh-independent spray models and parallelizes the chemistry solver based on the computing load so that simulations can be performed on relatively coarse meshes on multiple processors (up to four). Computational times were reduced by a factor of more than twenty for DI engine when parallelizing with four processors.
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Citation
Shi, Y., Kokjohn, S., Ge, H., and Reitz, R., "Efficient Multidimensional Simulation of HCCI and DI Engine Combustion with Detailed Chemistry," SAE Technical Paper 2009-01-0701, 2009, https://doi.org/10.4271/2009-01-0701.Also In
References
- Lee S. Gonzalez M. A. Reitz R. D. Effects of Engine Operating Parameters on near Stoichiometric Diesel Combustion Characteristics SAE Paper 2007-01-0121 2007
- Nevin R. M. Sun Y. Gonzalez M. A. Reitz R. D. PCCI Investigation Using Variable Intake Valve Closing in a Heavy Duty Diesel Engine SAE Paper 2007-01-0903 2007
- Kimura S. Aoki O. Kitahara Y. Ogawa H. et.al. “New Combustion Concept for Ultraclean and High-Efficiency Small DI Diesel Engines” SAE Paper 1999-01-3681 1999
- Kimura S. Aoki O. Kitahara Y. Aiyoshizawa E. “Ultra-Clean Combution Technology Combining a Low-Temperature and Premixed Combustion Concept for Meeting Future Emission Standards” SAE Paper 2001-01-0200 2001
- Kong S.-C. Reitz R. D. “Use of Detailed Chemical Kinetics to Study HCCI Engine Combustion with Consideration of Turbulent mixing effects” Journal of Engineering for Gas Turbines and Power 124 2002 702 707
- Park S.W Reitz R. D. “Numerical Study on the Low Emission Window of Homogeneous Charge Compression Ignition Diesel Combustion” Combustion Science and Technology 179 2007 2279 2307
- Kee R. J. Rupley F. M. Miller J. A. “CHEMKIN II: A Fortran Chemical Kinetics Package for the Analysis of Gas Phase Chemical Kinetics” Sandia Report SAND89-8009B, UC-706 Sandia National Laboratories 1989
- Amsden A. A. “KIVA-3:A KIVA Program with Block-structured Mesh for Complex Geometry” Report No. LA-12503-MS Los Alamos National Laboratory 1993
- Ra Y. Hruby E. Reitz R. D. “Parametric Study of Combustion Characteristics in a Direct-injection Diesel Homogeneous Charge Compression Ignition Engine with a Low-pressure Fuel Injector” International Journal of Engine Research 6 2005 215 230
- Singh S. Reitz R. D. Musculus M. P. B. Lachaux T. “Validation of Engine Combustion Models against Detailed In-cylinder Optical Diagnostics Data for a Heavy-duty Compression-Ignition Engine” International Journal of Engine Research 8 2007 97 126
- Shi Y. Reitz R. D. “Optimization Study of the Effects of Bowl Geometry, Spray Targeting and Swirl Ratio for a Heavy-duty Diesel Engine Operated at Low- and High-Load” International Journal of Engine Research 4 2008 325 346
- Han Z. Reitz R. D. “Turbulence Modeling of Internal Combustion Engines using RNG k-ε Models” Combustion Science and Technology 106 1995 267 295
- Reitz R. D. “Modeling Atomization Processes in High-presure Vaporization Sprays” Atomization and Sprays 3 1987 309 337
- Beale J. C. Reitz R. D. “Modeling Spray Atomization with the Kelvin-Helmholtz/Rayleigh-Taylor Hybrid Model” Atomization and Sprays 9 1999 623 650
- O' Rourke P. J. Amsden A. A. “A spray/wall interaction submodel for the KIVA-3 wall film model” SAE Paper 2000-01-0271 2000
- Ra Y. Reitz R. D. “A Reduced Chemical Kinetic Model for IC Engine Combustion Simulations with Primary Reference Fuels” Combustion and Flame 10.1016/j.combustflame.2008.05.002 2008
- Kong S. -C. Sun Y. Reitz R. D. “Modeling Diesel Spray Flame Lift-off, Sooting Tendency and NOx Emissions using Detailed Chemistry with Phenomenological Soot Model” Journal of Engineering for Gas Turbines and Power 129 2007 245 251
- Babajimopoulos A. Assanis D. N. Flowers D. L. Aceves S. M. Hessel R. P. “A Fully Coupled Computational Fluid Dynamics and Multi-zone Model with Detailed Chemical Kinetics for the Simulation of Premixed Charge Compression Ignition Engines” International Journal of Engine Research 6 2005 497 512
- Shi Y Hessel R. P. Reitz R. D. “An Adaptive Multi-grid Chemistry (AMC) Model for Efficient Simulation of HCCI and DI Engine Combustion” Combustion Theory and Modelling 10.1080/13647830802401101 2008
- Abani N Kokjohn L. S. Park S. W. Bergin M. Munnannur A. Ning W. Sun Y. Reitz R. D. “An improved Spray Model for Reducing Numerical Parameters Dependencies in Diesel Engine CFD Simulations,” SAE Technical Paper 2008-01-0970 2008
- Dukowicz J.K. “A Particle-fluid Numerical Model for Liquid Sprays” Journal of Computational Physics 35 1980 229 253
- Abraham J. “What Is Adequate Resolution in the Numerical Computation of Transient Jets,” SAE paper 970051 1997
- Abani N. Reitz R. D. “Unsteady Turbulent Round Jets and Vortex Motion” Physics of Fluids 19 2007 125102-1 125102-13
- O'Rourke P.J. Collective drop effects in vaporizing liquid sprays Ph.D. Dissertation Dept. Mech. Aerospace Eng., Princeton Univ. Princeton, NJ, USA 1981
- Schmidt D.P. Rutland C.J. “Reducing Grid Dependency in Droplet Collision Modeling,” Journal of Engineering for Gas Turbines and Power 126 2004 227 233
- Munnannur A. “Droplet Collision Modeling in MultiDimensional Engine Spray Computations” Ph.D. thesis University of Wisconsin Madison 2007
- Abraham J. “Entrainment Characteristics of Transient Jets,” Numerical Heat Transfer, Part-A 30 1996 347 364
- Kranendonk L.A. An X. Caswell A.W. Herold R.E. Sanders S.T. Huber R. Fujimoto J.G. Okura Y. Urata Y. “High Speed Engine Gas Thermometry by Fourier-domain Mode-locked Laser Absorption Spectroscopy,” Optics Express 15 2007 15115 15128
- Opat R. M. Ra Y. Gonzalez M. A. D. Krieger R. Reitz R. D. Foster D. E. Durrett R. P. Siewert R. M. “Investigation of Mixing and Temperature Effects on HC/CO Emissions for Highly Dilute Low Temperature Combustion in a Light Duty Diesel Engine” SAE Paper 2007-01-0193 2007