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

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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A wing-tail interference for a tail-controlled missile

꼬리날개 조종 유도무기의 주날개-꼬리날개 간섭 현상

  • Received : 2017.06.23
  • Accepted : 2017.09.23
  • Published : 2017.10.01
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Abstract

This paper presents the characteristics of wing-tail interference for a tail-controlled missile. The magnitude of wing-tail interference was calculated with wind tunnel test results and its effects on aerodynamic coefficients were investigated. The downwash angle of tail wing was calculated with experimental data and the effect of wing-tail interference was expressed as a ratio of angle of attack. Numerical simulations were made to examine flow characteristics of wing-tail interference and the vorticity contour of missile were compared with respect to angle of attack. Experimental and numerical analysis results show that the wing-tail interference has significant effects on static stability of tail-controlled missile.

꼬리날개 조종 유도무기의 주날개-꼬리날개 간섭 현상에 대한 연구를 수행하였다. 풍동시험 데이터를 이용하여 주날개-꼬리날개 간섭 정도를 산출하였으며 날개간의 간섭 현상이 전체 공력에 미치는 영향을 분석하였다. 성분 시험 결과를 이용하여 downwash angle을 산출하였으며 날개간의 간섭 영향을 받음각에 대한 비율로 나타내었다. 날개간의 간섭현상 발생 시 유동 특성을 살펴보기 위해 수치해석을 실시하였으며 받음각에 대한 vorticity 특성을 비교하였다. 실험적, 수치적 연구를 통해 주날개-꼬리날개 간섭현상이 유도무기의 정안정성에 큰 영향을 미침을 확인하였다.

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