한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제23권1호
  • /
  • Pages.139-147
  • /
  • 2015
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지
DOI QR코드

DOI QR Code

정상유동 장치에서 유동 특성 평가 방법에 대한 연구(2) - ISM와 PIV 측정의 비교

Study on Evaluation Method of Flow Characteristics in Steady Flow Bench(2) - Comparison of ISM and PIV Measurement

  • 박찬준 (서울과학기술대학교 기계.자동차공학과) ;
  • 엄인용 (서울과학기술대학교 기계.자동차공학과)
  • Park, Chanjun (Department of Mechanical & Automotive Engineering, Seoul National University of Science and Technology) ;
  • Ohm, Inyong (Department of Mechanical & Automotive Engineering, Seoul National University of Science and Technology)
  • 투고 : 2014.11.10
  • 심사 : 2014.11.26
  • 발행 : 2015.01.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This paper is the second investigation on the evaluation methods of flow characteristics in a steady flow bench. In the previous work, several assumptions used in the steady flow bench were examined and it was concluded that the assumption of the solid rotation might cause serious problems. In this study, intake valve angle is selected as a main parameter for the assessment because the main flow direction to cylinder governed by this angle has the strongest influence on the in-cylinder flow pattern. For this purpose, four heads, which have the different angle, are prepared and the flow characteristics are estimated both by the conventional impulse swirl meter and a particle image velocimetry at 1.75 times bore position apart from the cylinder head, which is widely used plane in the steady flow measurement. The results show that both of the eccentricity and the velocity profile distort the flow characteristics when using the ISM at 1.75 plane, however, the effects of two factors act in the opposite direction. In addition, the profile's influence is much greater than that of the eccentricity.

키워드

참고문헌

  1. I. Y. Ohm and C. J. Park, "Effect of Fuel Stratification on Initial Flame Development: Part 1 - Without Swirl," Int. J. Automotive Technology, Vol.7, No.5, pp.519-526, 2006.
  2. I. Y. Ohm and C. J. Park, "Effect of Fuel Stratification on Initial Flame Development: Part 2 - Low Swirl Condition," Int. J. Automotive Technology, Vol.9, No.6, pp.671-678, 2008. https://doi.org/10.1007/s12239-008-0079-5
  3. I. Y. Ohm and C. J. Park, "Effect of Fuel Stratification on Initial Flame Development: Part 3 - High Swirl Condition," Int. J. Automotive Technology, Vol.12, No.5, pp.653-660, 2011. https://doi.org/10.1007/s12239-011-0076-y
  4. M. G. Kang and I. Y. Ohm, "Effect of Intake Flow Control Method on Part Load Performance in SI Engine - Comparison of Throttling and Masking," Transactions of KSAE, Vol.22, No.2, pp.156-165, 2014. https://doi.org/10.7467/KSAE.2014.22.2.156
  5. M. G. Kang and I. Y. Ohm, "Effect of Intake Flow Control Method on Part Load Performance in SI Engine - EGR Characteristics and Comparison of Dilution Method," Transactions of KSAE, Vol.22, No.4, pp.121-130, 2014. https://doi.org/10.7467/KSAE.2014.22.4.121
  6. C. J. Park and I. Y. Ohm, "Study on Evaluation Method of Flow Characteristics in Steady Flow Bench(1) - Raising Issue," Transactions of KSAE, Vol.23, No.1, pp.88-96, 2015. https://doi.org/10.7467/KSAE.2015.23.1.088
  7. I. Y. Ohm and C. J. Park, "In-cylinder Intake Flow Characteristics according to Inlet Valve Angle," Transactions of KSAE, Vol.14, No.3, pp.142-149, 2006.
  8. I. Y. Ohm and C. J. Park, "In-cylinder Compression Flow Characteristics according to Inlet Valve Angle," Transactions of KSAE, Vol.14, No.4, pp.77-83, 2006.
  9. I. Y. Ohm and C. J. Park, "In-cylinder Intake Flow Characteristics of Helical Port Engines with Wide Valve Angle," Transactions of KSME, Vol.32, No.10, pp.761-768, 2008. https://doi.org/10.3795/KSME-B.2008.32.10.761
  10. I. Y. Ohm and C. J. Park, "In-cylinder Compression Flow Characteristics of Helical Port Engines with Wide Valve Angle," Transactions of KSME, Vol.32, No.1, pp.9-16, 2009. https://doi.org/10.3795/KSME-B.2009.33.1.9
  11. I. Y. Ohm and C. J. Park, "Effect of Inlet Valve Angle on In-cylinder Swirl Generation Characteristics(I)," Transactions of KSAE, Vol.16, No.6, pp.148-156, 2008.
  12. I. Y. Ohm and C. J. Park, "Effect of Inlet Valve Angle on In-cylinder Swirl Generation Characteristics(II)," Transactions of KSAE, Vol.17, No.1, pp.42-48, 2009.
  13. I. Y. Ohm, "Effects of Intake Valve Angle on Combustion Characteristic in an SI Engine," Int. J. Automotive Technology, Vol.14, No.4, pp.529-537, 2013. https://doi.org/10.1007/s12239-013-0057-4
  14. R. Stone, Introduction to Internal Combustion Engines, 2nd Edn., McGraw-Hill, Hong Kong, p.185, 1992.
  15. J. B. Heywood, Internal Combustion Engine Fundamentals, Int. Edn., McGraw-Hill, Singapore, pp.226-228, 1988.

피인용 문헌

  1. Study on Evaluation Method of Flow Characteristics in Steady Flow Bench(6) : Effect of Axial Velocity vol.26, pp.2, 2018, https://doi.org/10.7467/KSAE.2018.26.2.174