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

  • 제48권10호
  • /
  • Pages.753-763
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  • 2020
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  • 1225-1348(pISSN)
  • /
  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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페어링을 이용한 벨리 스팅 모형지지부의 직접 간섭효과 감소방안 연구

Study for Reducing the Near Field Interference of Belly Sting Model Support with Fairing

  • Kim, Namgyun (Agency for Defense Development) ;
  • Lee, Jaeho (Agency for Defense Development) ;
  • Cha, Kyunghwan (School of Mechanical Engineering of Chungnam National University) ;
  • Ko, Sungho (School of Mechanical Engineering of Chungnam National University)
  • 투고 : 2020.06.15
  • 심사 : 2020.09.14
  • 발행 : 2020.10.01
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초록

29.7% 축소 NASA Common Research Model을 벨리 스팅 모형지지부에 장착하여 저속에서 풍동시험을 수행하였다. 다양한 형상의 페어링을 장착한 벨리 스팅 모형지지부에 대하여 공력계수를 측정하는 시험을 수행하였으며 그 결과를 고찰하였다. 벨리 스팅 모형지지부에 장착된 CRM 형상을 이용하여 힘과 모멘트를 측정하였다. 벨리 스팅 페어링 형상 변화에 따른 피칭모멘트로부터 벨리 스팅 간섭 효과를 감소시키는 형상을 찾았다. 전산해석을 통해 벨리 스팅 모형지지부의 간섭과 시험부 페어링의 간섭 감소효과를 확인하였다.

A wind tunnel test of 29.7% scaled model of NASA Common Research Model with belly model support was performed in small low speed wind tunnel. The static aerodynamic forces and moments of CRM were measured with belly sting support configuration. Pitching moments of belly sting with various fairings were compared and small interference fairing shape was found. The belly sting model support interference and reducing effect of fairing shapes with CFD analysis.

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참고문헌

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