Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Effects of Swirl/Shear-coaxial Injector on the Dynamic Behavior of Gaseous Methane-Gaseous Oxygen Diffusion Flame

스월/전단 동축형 인젝터가 기체메탄-기체산소 확산화염의 동역학적 거동에 미치는 영향

  • Hong, Joon Yeol (Department of Mechanical Engineering, Pukyong National University) ;
  • Bae, Dae Seok (Department of Mechanical Engineering, Pukyong National University) ;
  • Kim, Jeong Soo (Department of Mechanical Engineering, Pukyong National University)
  • Received : 2018.06.15
  • Accepted : 2018.10.30
  • Published : 2019.02.01
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Abstract

To analyze the dynamic behavior and the structure of the gaseous methane-gaseous oxygen diffusion flame formed by a swirl/shear-coaxial injector, combustion experiments were carried out under different propellant injection conditions. As a result, the OH radical emission intensity of the diffusion flame visualized through chemiluminescence was observed to increase as the propellant mass flow and the momentum flux ratio increased. And flames with swirl showed a more high radical emission intensity than those without swirl.

스월/전단 동축형 인젝터를 통해 형성된 기체메탄-기체산소 확산화염의 동역학적 거동 및 구조분석을 위해 다양한 추진제 분사조건에 따른 연소실험이 수행되었다. 연구결과, 자발광 기법을 통해 가시화된 확산화염의 $OH^*$ 방사강도는 추진제 공급유량 및 운동량 플럭스 비 증가에 따라 높은 값을 나타내고 있으며, 스월을 가지는 화염은 그렇지 않은 것에 비해 더 우수한 반응성을 보였다.

Keywords

References

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