항공우주시스템공학회지 (Journal of Aerospace System Engineering)

  • 제14권4호
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  • Pages.18-24
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  • 2020
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  • 1976-6300(pISSN)
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  • 2508-7150(eISSN)
항공우주시스템공학회 (The Society for Aerospace System Engineering)
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Drag Reduction Effect by Counter-flow Jet on Conventional Rocket Configuration in Supersonic/Hypersonic Flow

  • Kim, Yongchan (Department of Aerospace Engineering, Inha University) ;
  • Kim, Duk-Min (Department of Aerospace Engineering, Inha University) ;
  • Roh, Tae-Seong (Department of Aerospace Engineering, Inha University) ;
  • Lee, Hyoung Jin (Department of Aerospace Engineering, Inha University)
  • 투고 : 2020.03.26
  • 심사 : 2020.06.19
  • 발행 : 2020.08.31
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초록

The counter-flow jet from a supersonic/hypersonic vehicle causes a structural change in the shock wave generated around the aircraft, which can lead to reduced drag and heat loads. Since the idea is to mount a counter-flow jet device for drag reduction in the aircraft, it is necessary to understand the effect of such a device on the entire aircraft. In this study, the effect of drag reduction due to counter-flow jet on a conventional rocket configuration was analyzed through CFD analysis. The results showed that the drag reduction effect was the largest in the blunt region and that the counter-flow jet also affected the downstream of the aircraft. The analysis indicated that the drag reduction effect by the counter-flow jet was about 10 to 25 % when targeting the entire rocket-shaped area, while the effect was as high as 50% when targeting only blunt objects.

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참고문헌

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