한국군사과학기술학회지 (Journal of the Korea Institute of Military Science and Technology)

  • 제20권3호
  • /
  • Pages.393-404
  • /
  • 2017
  • /
  • 1598-9127(pISSN)
  • /
  • 2636-0640(eISSN)
한국군사과학기술학회 (The Korea Institute of Military Science and Technology)
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측방 제트가 아음속 유도탄 종방향 공력특성에 미치는 영향 연구

A Study on the Effects of Side Jets to the Longitudinal Aerodynamics of Subsonic Missile

  • 고범용 (국방과학연구소 제1기술연구본부) ;
  • 허기훈 (국방과학연구소 제1기술연구본부)
  • GO, Beom Yong (The 1st Research and Development Institute, Agency for Defense Development) ;
  • HUR, Ki Hoon (The 1st Research and Development Institute, Agency for Defense Development)
  • 투고 : 2016.10.20
  • 심사 : 2017.04.28
  • 발행 : 2017.06.05
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초록

Side jet effect on the aerodynamic characteristics of a missile was investigated using experimental and computational methods. A couple of side jets were injected toward outward downstream at mid point of missile body. Cold air jet was used in the wind tunnel test, and cold and hot jet were used in the computation. Wind tunnel test was carried out with jet and without jet, and calculation was performed for three cases ; no jet, cold air jet, and hot mixture gas jet. From the comparison of measured and calculated data for all cases, two points could be deduced. Firstly, side jet made static stability to be unstable by increasing body normal force near the side jet exit and by decreasing tail normal force. Secondly, hot mixture gas had more significant effect on the static stability of a missile-type body than cold air jet.

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참고문헌

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