This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Model for the Instantaneous Heat Transfer and Turbulence in a Spark Ignition Engine
Annotation ability available
Sector:
Language:
English
Abstract
The heat transfer and turbulence are modeled for a spark-ignition engine. The heat transfer is described in terms of unsteady boundary layers for both the burned and unburned gas regions. These boundary layers are influenced by both the free stream turbulence level and the rate of flame propagation. Turbulence levels are characterized by a K-ε model which includes the effects of compressibility and anisotropic behavior of the flow field. The flame propagation process is modeled using current entrainment model philosophy.
The results of the modeling are illustrated for an engine having a simple pancake geometry. The major accomplishments are the development of an unsteady, compressible turbulence model and the development of an instantaneous heat transfer model. The influence of the turbulent field on the heat transfer rate is given via the turbulent Reynolds number and the integral length scale. The averaged heat transfer rate is compared with the correlations of Annand and Woschni and the shortcomings of these simpler correlations are discussed.
Recommended Content
Authors
Citation
Borgnakke, C., Arpaci, V., and Tabaczynski, R., "A Model for the Instantaneous Heat Transfer and Turbulence in a Spark Ignition Engine," SAE Technical Paper 800287, 1980, https://doi.org/10.4271/800287.Also In
References
- Lavoie G. A. Heywood J. B. Keck J. C. “Experimental and Theoretical Study of Nitric Oxide Formation in Internal Combustion Engines,” Combustion Science and Technology 1 313 1970
- Blizard N. C. Keck J. C. “Experimental and Theoretical Investigation of Turbulent Burning Model for Internal Combustion Engines,” SAE Paper No. 740191
- Tabaczynski R. J. Ferguson C. R. Radhakrishnan K. “A Turbulent Entrainment Model for Spark-Ignition Engine Combustion,” SAE Paper No. 770647
- Bellan J. Sirignano W. A. “A Theory of Turbulent Flame Development and Nitric Oxide Formation in Stratified Charge Internal Combustion Engines,” Combustion Science and Technology 8 51 1973
- Bracco F. V. “Introducing a New Generation of More Detailed and Informative Combustion Models,” SAE Paper No. 741174
- Boni A. A. “Numerical Simulation of Flame Propagation in Internal Combustion Engines,” SAE Paper No. 780316
- Woschni G. “A Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine,” SAE Paper No. 670931
- Annand W. J. D. “Heat Transfer in the Cylinders of Reciprocating Internal Combustion Engines,” Proc. Instn. Mech. Eng 177 973 1963
- Annand W. J. D. Ma T. H. “Instantaneous Heat Transfer Rates to the Cylinder Head Surface of a Small Compression-Ignition Engine,” Proc. Instn. Mech. Eng. 185 976 1970–71
- Launder B. E. Spalding D. B. “Lectures in Mathematical Models of Turbulence,” Academic Press 1972
- Saffman P. G. Wilcox D. C. “Turbulence Model Predictions for Turbulent Boundary Layers,” AIAA Jour. 12 4 541 1974
- Gosman A. D. Johns R. J. R. “Development of a Predictive Tool for In-Cylinder Gas Motion in Engines,” SAE Paper No. 780315
- Ramos J. I. Humphrey J. A. C. Sirignano W. A. “Numerical Prediction of Axisymmetric Laminar and Turbulent Flows in Motored, Reciprocating Internal Combustion Engines,” SAE Paper No. 790356
- Dussauge J. P. Gaviglio J. Favre A. “Density Changes and Turbulence Production in the Expansion or Compression of a Turbulent Flow at Supersonic Speed,” Lecture Notes in Physics 76 385 Fiedler H. Springer Verlag Berlin 1978
- Schlichting H. “Boundary Layer Theory,” 6th edition McGraw-Hill 1968
- Hires S. D. Tabaczynski R. J. Novak J. M. “The Prediction of Ignition Delay and Combustion Intervals for a Homogeneous Charge, Spark Ignition Engine,” SAE Paper No. 780232
- Ferguson C. R. Keck J. C. “On Laminar Flame Quenching and its Application to Spark-Ignition Engines,” Combustion and Flame 28 197 1977
- Hires S. D. Ekchian A. Heywood J. B. Tabaczynski R. J. Wall J. C. “Performance NO x Emissions Modelling of a Jet Ignition Prechamber Stratified Charge Engine,” SAE Paper No. 760161
- Martin M. K. Heywood J. B. “Approximate Relationships for the Thermodynamic Properties of Hydrocarbon-Air Combustion Products,” Combustion Science and Technology 15 1 1977
- Semenov E. S. “Studies of Turbulent Gas Flow in Piston Engines,” 1963
- Dent J. C. Salama N. S. “The Measurement of the Turbulent Characteristics in an Internal Combustion Engine Cylinder,” SAE Paper No. 750886
- James E. H. Lucas G. G. “Turbulent Flow in Spark Ignition Combustion Chambers,” SAE Paper No. 750885
- Lancaster D. R. “Effects of Engine Variables on Turbulence in a Spark-Ignition Engine,” SAE Paper No. 760159
- Matekunas F. A. “A Schlieren Study of Combustion in a Rapid Compression Machine Simulating the Spark Ignition Engine,” 17th Symposium (Int.) on Combustion 1283 1978
- Witze P. O. “Measurements of the Spatial Distribution and Engine Speed Dependence of Turbulent Air Motion in an I.C. Engine,” SAE Paper No. 770220
- Johnston S. C. Robinson C. W. Rorke W. S. Smith J. R. Witze P. O. “Application of Laser Diagnostics to an Injected Engine,” SAE Paper No. 790092
- Rask R. B. “Laser Doppler Anemometer Measurements in an Internal Combustion Engine,” SAE Paper No. 790094
- Morse A. P. Whitelaw J. H. Yianneskis M. “Turbulent Flow Measurements by Laser-Doppler Anemometry in Motored Piston-Cylinder Assemblies,” Jour. Fluids Eng. 101 208 1979
- Wolfshtein M. “The Velocity and Temperature Distribution in One-Dimensional Flow with Turbulence Augmentation and Pressure Gradient,” Int. Jour. Heat Mass Transfer 12 301 1969
- Spalding D. B. “Heat Transfer from Turbulent Separated Flows,” Jour. Fluid Mech. 27 97 1967
- Siewert R. M. “Engine Combustion at Large Bore-to-Stroke Ratios,” SAE Paper No. 780968
- McCuiston, F. D. Jr. Lavoie G. A. Kauffman C. W. “Validation of a Turbulent Flame Propagation Model for a Spark Ignition Engine,” SAE Paper No. 770045
- Lancaster D. R. Krieger R. B. Sorenson S. C. Hull W. L. “Effects of Turbulence on Spark Ignition Engine Combustion,” SAE Paper No. 760160
- Launder B. E. Reece G. J. Rodi W. “Progress in the Development of a Reynolds-Stress Turbulence Closure,” J. Fluid Mech. 68 537 1975
- Wolfshtein M. Naot D. Lin A. “Topics in Transport Phenomena,” Gutfinger C. John Wiley 1975
- Grief R. Namba T. Nikanham M. “Heat Transfer During Piston Compression Including Side Wall and Convection Effects,” Int. J. Heat Mass Transfer 22 901 1979
- Saffman P. G. “Results of a Two Equation Model for Turbulent Flows and Development of a Relaxation Stress Model for Application to Straining and Rotating Flows,” Proc. Heat Transfer and Fluid Mech. Inst. 1978