The Effect of the Intake Port Configuration on the Flow and Combustion in a 4-Valve Pentroof Gasoline Engine

  • Kim, Hongsuk (Graduate School of Mechanical Engineering, Sungkyunkwan University) ;
  • Lee, Jeongmin (Graduate School of Mechanical Engineering, Sungkyunkwan University) ;
  • Nakwon Sung (School of Mechanical Engineering, Sungkyunkwan University)
  • Published : 2001.02.01

Abstract

The flow field in a cylinder of a 4-valve pentroof engine is studied using the KIVA-3V code. Turbulence is generated from the jet flow through valves and broken down to the small scale eddies in the compression process. It is known that the tumble effectively keeps turbulence during the compression process. In the combustion process, turbulence is known to enhance flame speed by increasing mass, momentum and heat transfer rates. The effects of the intake port angles on the flow and combustion characteristics are studied in this study. To study the effect of turbulence on the combustion process, Cantore combustion model is applied in this study.

Keywords

References

  1. Amsden, A. A., O'Rourke P. J., and Butler, T. D., 1989, 'KIVA-II: A Computer Program for Chemically Reactive Flows with Sprays,' LosAlamos National Laboratory Report No. LA-11560-MS
  2. Amsden, A. A., 1997, 'KIVA-3V: A Block Structured KIVA Program for Engines with Vertical or Canted Valves,' LosAlamos National Laboratory Report No. LA-UR-97-698
  3. Cantore, G., Borghi, M., Mattarelli, E. and Bianchi, G. M., 1995, 'Numerical Simulation of Turbulent Combustion in a Four Valve Spark Ignition Engine with CRI/TURBOKIVA 2.0 Code,' ICE-Vol. 23, Engine Modeling, ASME
  4. Henlot, S., 1989, 'Three Dimensional Modeling of Flow and Turbulence in Four-Valve Spark ignition Engine-Comparison woth LDV Measurements,' SAE Paper 89084
  5. Jennings, M. J., 1992, 'Multi-Dimensional Modeling of Turbulent Premixed Charge Combustion,' SAE Paper 920589
  6. Kang, K. Y., Lee, J. W., Jeong D. S., Jeong, S. Y. and Baek, J. H., 1994, 'The Effect of Intake Port Configurations on the Turbulence Characteristics During Compression Stroke in a Motored Engine,' KSME J., Vol. 18, No. 4, pp. 920-933
  7. Kang, K. Y. and Baek, J. H., 1996, 'Tumble Flow and Turbulence Characteristics in a Small Four Valve Engine,' SAE paper 960265
  8. Kang et al., 1997, 'Development of Design Techniques for Intake Port and Combustion Chamber,' KIMM Technical Report, pp. 301-358
  9. Khalighi, B., El Tahry, S. H., Haworth, D. C. and Huebler, M. S. 1995, 'Computation and Measurement of Flow and Combustion in a Four-Valve Engine with Intake Variations,' SAE Paper 950287
  10. Magnussen, B. F. and Hjertager, B. H., 1976, 'On Mathematical Modeling of Turbulent Combustion with Special Emphasis on Soot Formation and Combustion,' Sixteenth Sym. on Combustion, The Combustion Institute
  11. Naitoh, K., 1990, 'Numerical Simulation of the Detailed Flow in Engine Ports and Cylinders,' SAE Paper 900256