Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Intake-Air Flow and Distribution Characteristics of the Gasoline Engine Intake-Manifold

가솔린엔진 흡기매니폴드의 흡기유량 및 분배특성

  • Yeom, Kyoung-Min (Mechanical Engineering Dept., Graduate School, Kongju National University) ;
  • Park, Sung-Young (Industrial Technology Research Institute, College of Engineering, Kongju National University)
  • 염경민 (공주대학교 기계자동차공학부) ;
  • 박성영 (공주대학교 공과대학 생산기술연구소)
  • Received : 2011.04.06
  • Accepted : 2011.11.10
  • Published : 2011.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

Intake-air flow and distribution characteristics of the 1600cc gasoline engine intake manifold have been studied using the computer simulation. Simulation has been conducted using both one-dimensional performance simulation and three-dimensional CFD software. Steady state flow simulation result of the intake manifold shows good distribution characteristics that the standard deviation of flow coefficients is below 1.0 percentage for both one- and three-dimensional simulation. Even though one-dimensional simulation result slightly overestimates compared with three-dimensional simulation result, both results show very good agreement in flow coefficient trend. Also, unsteady state simulation result shows consistent distribution characteristics with that of steady state. It is shown that unsteady state distribution characteristics might be able to be predicted through the steady state mass distribution result.

본 연구는 성능 해석을 통하여 1600cc급 흡기매니폴드의 흡기유량 및 분배특성에 대한 연구를 수행하였다. 일차원 엔진 성능해석 프로그램과 3차원 유동해석프로그램을 이용하여 해석을 수행하였다. 흡기 매니폴드의 정상상태 유동해석을 수행한 결과, 일차원 유동해석과 3차원 유동해석의 유량계수 표준편차는 1% 미만으로 우수한 분배특성을 나타내었다. 일차원 해석 결과가 3차원 결과 대비 미소하게 증가된 결과를 보였지만 동등한 유량계수 경향성을 나타냈다. 비정상상태 해석은 분배특성 측면에서 정상상태 해석 결과와 유사한 결과를 보였으며, 정상상태 해석결과를 통한 비정상상태 분배특성의 예측이 가능함을 확인하였다.

Keywords

References

  1. J. Kim, et al., "The Flow and Distribution Characteristics for Various Configurations of Individual EGR Supply System", KSAE 2005 Fall, KSAE05-F0003, pp.15 -21, 2005.
  2. C. Park, et al., "A Study on Application of On/Off Type EGR and Optimal EGR Rate for Gasoline-Hybrid Engine", Transactions of KSAE, Vol. 16, No. 4, pp.143-150, 2008.
  3. C. Kim, et al., "A Study for Distribution of Gasoline Engine Using CFD", KSAE 2006 Fall, KSAE06-F0016, pp.106-111, 2006.
  4. Gamma Technologies, "GT-Power User's Manual version 7.0", 2010.
  5. Y. Kang, et al., "Shape Optimization of Intake Manifold for Improving the EGR Distribution by Using Computational Fluid Dynamics in Diesel Engine", KSAE 2008, KSAE08-S0067, pp.410-415, 2008.
  6. N. Park, et al., "Coupled 1-D/3-D Analysis of Cylinder -to-Cylinder EGR Distribution of Intake Manifolds in a HSDI Diesel Engine", KSAE 2004 Spring, KSAE04 -S0071, pp.441-446, 2004.
  7. J. B. Heywood, "Internal Combustion Engine Fundamentals", McGraw Hill, 1988.