한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제37권4호
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  • Pages.383-391
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  • 2009
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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Induction Parameter Modeling을 이용한 열 분해된 JP-7 연료 /산소 혼합기의 데토네이션 파 해석

Detonation Wave Simulation of Thermally Cracked JP-7 Fuel/Oxygen Mixture using Induction Parameter Modeling

  • 조덕래 (부산대학교 항공우주공학과 대학원) ;
  • 신재렬 (부산대학교 항공우주공학과 대학원) ;
  • 최정열 (부산대학교 항공우주공학과) ;
  • 발행 : 2009.04.01
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초록

JP-7/산소 혼합기의 데토네이션 파 특성을 상세 반응 기구로부터 얻은 일 단계 유도 변수 모델을 (IPM) 이용하여 살펴보았다. 탄화수소 혼합기에 대한 상세 화학 반응 모델로 부터 신뢰할 만한 일 단계 반응 모델을 얻기 위한 일반적 과정을 본 연구에서 제시하였다. IPM은 상세 반응 모델 라이브러리로부터 획득한 유도 시간 데이터베이스를 재구성하여 얻었으며, 상세 반응 모델에 의한 결과와 비교하여 확인하였다. 이후 IPM을 유체역학해석 코드에 적용하였으며, 데토네이션 파 전파에 대한 수치해석에 이용하였다. 수치해석 결과는 탄화수소 연료 연소의 상세 반응 기구를 직접 적용해서는 가능하지 않은, JP-7/산소 혼합기의 데토네이션 파 전파 특성의 상세한 특징을 보여주었다.

The detonation wave characteristics of JP-7 and oxygen mixture is investigated by one-step induction parameter model (IPM) obtained from a detailed chemistry mechanism. A general procedure of obtaining reliable one-step kinetics IPM for hydrocarbon mixture from the fully detailed chemistry is described in this study. The IPM is obtained by the reconstruction of the induction time database obtained from a detailed kinetics library. The IPM was confirmed by the comparison of the induction time calculations with that from detailed kinetics. The IPM is later implemented to a fluid dynamics code and applied for the numerical simulation of detonation wave propagation. The numerical results show the detailed characteristics of the detonation wave propagation in JP-7 and oxygen mixture at affordable computing time, which is not be possible by the direct application of the detailed chemical kinetics mechanism of hydrocarbon fuel combustion.

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참고문헌

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