Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Study on Mixing Characterization of Unlike-doublet Injector for Liquid Rocket Engine

액체로켓용 Unlike-doublet 인젝터의 혼합특성 연구

  • Lee, In-Su (School of Mechanical and Aerospace Eng., Seoul Nat. Univ.) ;
  • Jung, Ki-Hoon (School of Mechanical and Aerospace Eng., Seoul Nat. Univ.) ;
  • Lim, Byoung-Gjik (School of Mechanical and Aerospace Eng., Seoul Nat. Univ.) ;
  • Yoon, Young-Bin (School of Mechanical and Aerospace Eng., Seoul Nat. Univ.)
  • 이인수 (서울대학교 기계항공공학부) ;
  • 정기훈 (서울대학교 기계항공공학부) ;
  • 임병직 (서울대학교 기계항공공학부) ;
  • 윤영빈 (서울대학교 기계항공공학부)
  • Published : 2002.03.31
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Abstract

The mixing of propellant and its mass distribution of unlike-doublet impinging injector, which is known to affect the combustion efficiency significantly, have been studied using PLIF(Planar Laser Induced Fluorescence). The results show that fuel jet penetrates considerably into the oxidizer jet at impinging point as variation of momentum ratio. and then stream flows inclined because of variation of momentum ratio. Consequently, the mixing efficiency shows that maximum efficiency is at MR=3. after MR=3, mining efficiency decreases slightly.

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