Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
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A Numerical Study on Flame Stability with Extended Combustor in Superdetonative Mode Ram Accelerator

초폭굉 모드 램 가속기의 연소실 길이에 따른 화염유지특성에 대한 수치적 연구

  • 성근민 (서울대학교 기계항공공학부 항공우주신기술연구소) ;
  • 정인석 (서울대학교 기계항공공학부 항공우주신기술연구소)
  • Published : 2007.12.31
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Abstract

An numerical study was conducted on superdetonative mode ram accelerator with length extended combustor. The computation condition was based on ISL's RAMAC30 II S225 experiment. For 50% length increased combustor, flame is not sustained. For the case of 60% and 70% increase, flame is successfully sustaind. But detonation wave is oscillating and acceleration is fluctuating. Extention of combustor is helpful for sustaing detonation wave but it may cause unstart.

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