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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Experimental Investigation of Artificial Supercavitation under Periodic Gust Flows

주기적으로 거동하는 유동장의 인공 초월공동에 대한 실험연구

  • Jeong, So-Won (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Park, Sang-Tae (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Ahn, Byoung-Kwon (Department of Naval Architecture & Ocean Engineering, Chungnam National University)
  • 정소원 (충남대학교 선박해양공학과) ;
  • 박상태 (충남대학교 선박해양공학과) ;
  • 안병권 (충남대학교 선박해양공학과)
  • Received : 2017.12.08
  • Accepted : 2018.03.23
  • Published : 2018.04.05
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Abstract

Recently a supercavitating underwater vehicle moving at high speed over 200 knots has been of interest for its practical advantage of the dramatic drag reduction. Many experimental and numerical studies have been explored, however most of the studies deal with the case of uniform flows. In this paper, we investigated physical behaviors of the artificial supercavity in a periodic gust flow. Experiments were carried out at a cavitation tunnel of the Chungnam National University(CNUCT), which is equipped to remove the gas supplied from outside of the tunnel. We devised an experimental apparatus generating vertical and horizontal gust flows, and investigated the supercavity formations at different periodic mode of the incoming flow.

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References

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