대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제55권4호
  • /
  • Pages.330-340
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  • 2018
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  • 1225-1143(pISSN)
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  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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신조된 고속 캐비테이션 터널에서 환기 초공동 실험 수행을 위한 기초 연구

Fundamental Studies for Ventilated Supercavitation Experiments in New High-speed Cavitation Tunnel

  • 백부근 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 김민재 (국방과학연구소) ;
  • 정영래 (국방과학연구소) ;
  • 이승재 (대우조선해양) ;
  • 김경열 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 안종우 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 설한신 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 김기섭 (한국해양과학기술원 부설 선박해양플랜트연구소)
  • 투고 : 2018.01.29
  • 심사 : 2018.05.28
  • 발행 : 2018.08.20
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초록

In the present works, the High-speed Cavitation Tunnel (HCT) has been designed and manufactured to have the large test section to conduct various supercavitation experiments. The large amount of air ventilated behind a cavitator produces lots of tiny bubbles, which prevent clear observation of supercavitation at the test section. To collect small bubbles effectively, a bubble collecting section of large volume is equipped upstream of the test section. HCT has the test section dimension of $0.3^H{\times}0.3^W{\times}3.0^L\;m^3$ and provides maximum flow speed of 20.4 m/s at the test section. The blockage and Froude effects on the ventilated supercavitation are investigated successfully at the test section. The basic studies such as the supercavitation evolution, drag measurements and cavity shape extraction with air flow rate are also carried out in HCT.

키워드

참고문헌

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