Journal of Mechanical Science and Technology

  • 제16권4호
  • /
  • Pages.557-563
  • /
  • 2002
  • /
  • 1738-494X(pISSN)
  • /
  • 1976-3824(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지

A Numerical Study of the Effects of Piston Head Configurations on Stratified Mixture Formation in Gasoline Direct-injection Engines

  • Cha, Kyung-Se (Department of Mechanical Engineering, Chonnam National University) ;
  • Park, Chan-Guk (Department of Mechanical Engineering, Chonnam National University) ;
  • Tomoyuki Wakisaka (Department of Mechanical Engineering, Osaka City University)
  • 발행 : 2002.04.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, the characteristics of flow and spray motions affected by from piston head configurations were investigated numerically. Calculations were carried out from intake process to the end of compression. GTT (Generalized Tank and Tube method) code, which includes a third order upwind Chakravarthy-Osher TVD scheme and k-$\varepsilon$ turbulence model with fuel spray analysis was used for the calculations. As a results, piston heads with smaller radii of curvature were found to give stronger reverse tumble than those with larger radii of curvature. Similar results are shown in the convection and diffusion of fuel sprays.

키워드

참고문헌

  1. Amsden, A. A., Ramshaw, J. D., O'Rourke, P. J. and Dukowicz, J. K., 1985, 'KIVA: A Computer Program for Two-and Three-Dimensional Fluid Flows with Chemical Reactions and Fuel Sprays,' Los Alamos Report No. LA-10245-MS
  2. Iwamoto, Y., Noma, T., Nakayama, O., Yamauchi, T. and Ando, H., 1997, 'Development of Gasoline Direct Injection Engine,' SAE paper 970541
  3. Kume, T., Iwamoto, Y., Iida, K., Murakami, M., Akishino, K. and Ando, H., 1996, 'Combustion Control Technologies for Direct Injection SI Engine,' SAE paper 960600
  4. Reitz, R. D. and Diwakar, R., 1987, 'Structure of High-Pressure Fuel Spray,' SAE paper 870598
  5. Schapertons, H., Emmennthal K. D., Grabe, H. J. and Oppermann, W., 1991, 'VW's Gasoline Direct Injection (GDI) Research Engine,' SAE paper 910054
  6. Shimotani, K., Oikawa, K., Horada, O. and Kagawa, Y., 1995, 'Characteristics of Gasoline In-Cylinder Injection Engine,' Proceedings of the 12th Internal Combustion Engine Symposium, Japan, pp. 289-294
  7. Shiraishi, T., Fujieda, M. and Ohsuga, Y., 1995, 'A Study of the Mixture Preparation Process on Spark Ignited Direct Fuel Injection Engines,' Proceedings of 8th IPC, pp. 235-240
  8. Van Doormaal, J. P. and Raithby G. D., 1984, 'Enhancements of the SIMPLE Method for Predicting Incompressible Fluid Flows,' Numerical Heat Transfer, Vol. 7, pp. 147-163 https://doi.org/10.1080/01495728408961817
  9. Wakisaka, T., Shimamoto, Y., Isshiki, Y., Sumi, N., Tamura, K. and Modien, R. M., 1990, 'Analysis of the Effects of In-Cylinder Flows during Intake Stoke on the Flow Characteristics near Compression TDC in Four-Stoke Cycle Engines,' Proc. Int. Symp. COMODIA 90, pp. 487-492
  10. Wakisaka, T., Shimamoto, Y., Isshiki, Noda, T., Matsui, A. and Akamatsu, S., 1994, 'Numerical Analysis of Spray Phenomena in Fuel Injection Engines,' Proc. Int. Symp. COMODIA 94, pp. 403-492
  11. Wakisaka, T., Takeuchi, S. and Shimamoto, Y., 1995, 'Numerical Analysis of the Behavior of Tumbling Vortices in Engine Cylinders Using Higher-Order Schemes,' Proc. 1st Asian Computational Fluid Dynamics Conference, Vol. 1, pp. 227-233
  12. Yabe, T. and Takei, E., 1988, 'A New Higher-Order Godunov Method for General Hyperbolic Equations,' Journal of the Physical Society of Japan, Vol. 57, No. 8, pp. 2598-2601 https://doi.org/10.1143/JPSJ.57.2598
  13. Yamauchi, T. and Wakisaka, T., 1996, 'Computation of the Hollow-Cone Sprays from a High-Pressure Swirl Injector for a Gasoline Direct-Injection SI Engine,' SAE paper 962016
  14. Yamauchi, T., Wakisaka, T., Kaneko, T., Kaneko, M., Kato, S. and Hosaka, H., 1988, 'Numerical Analysis of Stratified Mixture Formation in Direct-Injection Gasoline Engines,' Direkteinsprizung im Ottomotor, ISBN 3-8169-1685-6, pp. 166-185