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

  • 제47권8호
  • /
  • Pages.599-606
  • /
  • 2019
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  • 1225-1348(pISSN)
  • /
  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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횡단압력파 발생을 위한 단일 펄스건의 압력파 성능시험

Performance Test of a Single Pulse Gun for Transverse Pressure Wave Generation

  • Lee, Jongkwon (Department of Aerospace Mechanical Engineering, Korea Aerospace University) ;
  • Song, Wooseok (Department of Aerospace Mechanical Engineering, Korea Aerospace University) ;
  • Koo, Jaye (School of Aerospace Mechanical Engineering, Korea Aerospace University)
  • 투고 : 2018.10.11
  • 심사 : 2019.07.27
  • 발행 : 2019.08.01
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초록

펄스건 장치는 연소실 내, 다중 분사기 배열에 따른 연소 유동장으로의 횡단 압력파 전파/감쇠 메커니즘 규명을 목적으로 제작되었다. 제작된 펄스건은 성능시험을 통해 목표 연소압에서의 운용 가능 여부와 압력파 강도 제어 여부를 확인하였다. 기체질소를 사용하여 고압관에 가압을 하였으며 다이아프램에는 $100{\mu}m$ 두께의 OHP 필름을 사용하였다. 압력파의 속도와 강도를 확인하기 위해 압력 트랜스듀서를 이용하여 동압과 정압을 측정하였다. 제작된 펄스건은 공급압력에 따라 압력파의 강도 조절이 가능하며 횡방향성을 가지는 압력파를 생성할 수 있음을 성능시험을 통해 확인하였다.

The pulse gun device is designed to identify the transverse pressure wave propagation/damping mechanism into the combustion flow field and in the combustion chamber according to the arrangement of multiple injectors. The manufactured pulse gun was tested to verify operability at the target combustion pressure and control of the pressure wave intensity. Gas nitrogen was used to pressurize the high-pressure tube and an OHP film of $100{\mu}m$ thickness was used for the diaphragm. To check the speed and intensity of the pressure waves, the dynamic and static pressure were measured using the pressure transducer. The performance test confirmed that the manufactured pulse gun can generate pressure waves with transverse characteristics that can be controled for strength depending on the supply pressure.

키워드

참고문헌

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