This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Study of Knock Control in Small Gasoline Engines by Multi-Dimensional Simulation
Technical Paper
2006-32-0034
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
To suppress knock in small gasoline engines, the coolant flow of a single-cylinder engine was improved by using two methods: a multi-dimensional knock prediction method combining a Flamelet model with a simple chemical kinetics model, and a method for predicting combustion chamber wall temperature based on a thermal fluid calculation that coupled the engine coolant and the engine structure (engine head, cylinder block, and head gasket). Through these calculations as well as the measurement of wall temperatures and the analysis of combustion by experiments, the effects of wall temperature distribution and consequent unburnt gas temperature distribution on knock onset timing and location were examined. Furthermore, a study was made to develop a method for cooling the head side, which was more effective to suppress knock: the head gasket shape was modified to change the coolant flow and thereby improve the distribution of wall temperatures on the head side.
Recommended Content
Authors
Topic
Citation
Nakama, K., Kusaka, J., and Daisho, Y., "Study of Knock Control in Small Gasoline Engines by Multi-Dimensional Simulation," SAE Technical Paper 2006-32-0034, 2006, https://doi.org/10.4271/2006-32-0034.Also In
References
- Stone, R. Introduction to Internal Combustion Engines Macmillan Press Ltd 3rd edition London 1999
- Westin, F. Gradin, B. Angström, H-E. The Influence of Residual Gases on Knock in Turbocharged SI-Engines SAE Paper 2000-01-2840 2000
- König, G. Sheppard, C. G. W. End Gas Autoignition and Knock in a Spark Ignition Engine SAE Paper 902135 1990
- Russ, S. A. Review of the Effect of Engine Operating Conditions on Borderline Knock SAE Paper 960497 1996
- Heywood, J. B. Internal Engine Combustion Fundamentals McGraw-Hill 450 478 1988
- Towers, J. M. Hoekstra, R. L. Engine knock, a renewed concern in motorsports - A literature review SAE Paper 983026 1998
- Kleemann, A. P. Menegazzi, P. Henriot, S. Marchal, A. Numerical Study on Knocking for an SI Engine by Thermally Coupling Combustion Chamber and Cooling Circuit Simulation SAE Paper 2003-01-00563 2003
- Shih, S. Xin, J. Itano, E. Kawamoto, M. Maeda, Y. Engine Knock Toughness Improvement Through Water Jacket Optimization SAE Paper 2003-01-3259 2003
- Xin, J. Shih, S. Itano, E. Kawamoto, M. Maeda, Y. Integration of 3d Combustion Simulation and Conjugate Heat Transfer Analysis to Qualitatively Evaluate Component Temperature SAE Paper 2003-01-3128
- Matsutani, T. Nakada, T. Shinpo, Y. Hatano, M. Water Jacket Spacer for Improvement of Cylinder Bore Temperature Distribution SAE Paper 2005-01-1156 2005
- Gradin, B. Angström, H-E. Stalhammar, P. Olofsson, E. Knock Suppression in a Turbocharged SI Engine by Using Cooled EGR SAE Paper 982476 1998
- Gradin, B. Angström, H-E. Replacing Fuel Enrichment in a Turbocharged SI Engine; Lean Burn or Cooled EGR SAE Paper 1999-01-3530 1999
- El.Tahry, S. H. A Turbulence Combustion Model for Premixed Charge Engines Combust. Flame 79 122 140 1990
- Khalighi, B. El Tahry, S. H. Haworth, D. C. Huebler, M. S. Computation and Measurement of Flow and Combustion in a Four-Valve Engine with Intake Variations SAE Paper 950278 1995
- Halstead, M. P. Prothero, A. Quinn, C. P. A mathematical model of Cool-Flame Oxidation of Acetaldehyde Proc. R. Soc. Lond. A. 322 1971 377
- Halstead, M. P. Kirsch, L. J. Prothero, A. Quinn, C. P. A mathematical model for hydrocarbon Autoignition at high pressures Proc. R. Soc. Lond. A. 346 1975 515
- Halstead, M. P. Kirsch, L. J. Quinn, C. P. The Autoignition of Hydrocarbon Fuels at High Temperature and Pressure Fitting of Mathematical Model Combustion and Flame 30 1977 45
- Nakama, K. Murase, E. Kusaka, J. Daisho, Y. Knock Prediction Using Multi-dimensional Modeling on Gasoline Engines Review of Automotive Engineering 26 277 284 2005
- Theobald, M. A. Cheng, W. K. A numerical study of diesel ignition ASME Paper 87-FE-2 1987
- Launder, B. E. Spalding, D. B. The Numerical Computation of Turbulent Flows Comput. Meth. Appl. Mech. Engng 3 269 1974
- Han, Z. Reitz, R. D. A Temperature Wall Function Formation for Variable-Density Turbulent Flows with Application to Engine Convective Heat Transfer Modeling ASME, Int. J. Heat Mass Transfer 40 3 613 625 1997
- Yang, J. Martine, J. K. Approximate Solution - One- Dimensional Energy Equation for Transient, Compressible, Low Mach Number Turbulent Boundary Layer Flows ASME, Int. J. Heat Mass Transfer 111 619 1989
- Nakama, K. Murase, E. Kusaka, J. Daisho, Y. Knock Prediction Using Multi Dimensional Simulation on Gasoline Engines, Part II, Knock Prediction on Gasoline Engines by Coupling with Turbulence Combustion model and Simple Chemical Kinetics JSAE Paper 20056109 2005
- Golovichev, V. Mechanism for gasoline surrogate Feburary 2005 http://www.tfd.chalmers.se/∼valeri/
- Ogink, R. Golovichev, V. Reaction Mechanism for Natural Gas and Gasoline in Homogeneous Charge Compression Ignition (HCCI) Engine Modeling 6 th Int. Conf. On Engines for Automobile SAE_NA 2003-01-42 SAE Naples, ICE Italy September 2003
- Tsukagoshi, T. Nakama, K. Murase, E. Kusaka, J. Daisho, Y. Knock Prediction Using Multi Dimensional Simulation on Gasoline Engines, Part I, A Study on Gasoline Surrogate Mechanism JSAE Paper 20056108 2005
- Alkidas, A. C. Intake-Valve Temperature and the Factors Affecting It SAE Paper 971729 1997
- Kobayashi, H. Yohimura, K. Hirayama, T A study on dual circuit cooling for higher compression ratio SAE Paper 841294 1984