Proceedings of the Korean Society of Propulsion Engineers Conference (한국추진공학회:학술대회논문집)

  • 2010.11a
  • /
  • Pages.758-759
  • /
  • 2010
  • /
  • 1975-342X(pISSN)
The Korean Society of Propulsion Engineers (한국추진공학회)
권호 표지

Excremental Study on Wave Drag in Supersonic Wavy Walls

초음속 파동 벽면에서의 조파저항에 관한 실험적 연구

  • Kwon, Min-Chan ;
  • Semenov, Vasily V. (Moscow state Aviation Institute (MAI) Dept. Rocket Engines)
  • 권민찬 (대한항공 기술연구원 발사체엔진그룹) ;
  • Published : 2010.11.25
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, it was experimentally confirmed that the phenomenon of resonance effect of wave drag in two wavy walls. The channel had saw-tooth type of relief surfaces when supersonic gas flows into this channel. Experiment was carried out on the differential apparatus by conducting the comparative test of two nozzles (round sonic nozzle and two-dimensional nozzle with wavy walls). The two-dimensional nozzle was joined alternately with flat walls which had saw-tooth type of symmetrical and asymmetric reliefs. Two-dimensional nozzle was designed for the M=3 and profiled parabolic contour.

본 논문에서는 포물선 형상의 팽창부로 설계된 이차원 노즐(M=3)에 톱니 형태의 대칭 및 비대칭 파동 채널을 교대로 설치하여 원형 음속 노즐에서 발생하는 추력과의 추력편차를 측정함으로써, 두 파동 벽면 내에서 일어나는 조파저항의 공진현상을 실험적으로 확인하였다.

Keywords