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

  • 제53권6호
  • /
  • Pages.465-472
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  • 2016
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  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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축대칭 캐비테이터에서 발생하는 자연 초월공동과 항력 특성에 대한 연구

A Study on Natural Supercavitation and Drag Characteristics of Axisymmetric Cavitators

  • 김지혜 (충남대학교 선박해양공학과) ;
  • 정소원 (충남대학교 선박해양공학과) ;
  • 안병권 (충남대학교 선박해양공학과) ;
  • 전윤호 (LIG 넥스원(주) 기계연구센터)
  • Kim, Ji-Hye (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Jeong, So-Won (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Ahn, Byoung-Kwon (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Jeon, Yun-Ho (Mechanical Engineering R&D Lab, LIG Nex1 Co., LTd.)
  • 투고 : 2016.06.14
  • 심사 : 2016.10.18
  • 발행 : 2016.12.20
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초록

A study was carried out to investigate typical features of natural supercavitation generated behind axisymmetric bodies such as disk and cone shaped cavitators. Main focuses of the study were to observe formation process of the supercavity and to measure drag forces acting on cavitators. Experiments were carried out at the cavitation tunnel of the Chungnam National University (CNU-CT), which has a capability to make sufficient flow speed for supercavitation experiments and to remove broken cavity bubbles coming back to the test section. Blockage effects on supercavity dimensions were evaluated and an effort was made to correlate tunnel experiments with unbounded flow. On the basis of experimental and numerical results, geometrical features of supercavities and characteristics of drag forces were examined and their relations were proposed.

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참고문헌

  1. Ahn, B.K. Lee, T.K. Kim, H.T. & Lee, C.S., 2012. Experimental Investigation of Supercavitating Flows. Inter-national Journal of the Society of Naval Architects and Ocean Engineering, 4(2), pp.123-131. https://doi.org/10.2478/IJNAOE-2013-0083
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피인용 문헌

  1. Numerical Analysis of Unsteady Cavitating Vortex around Two-dimensional Wedge-shaped Submerged Body vol.32, pp.1, 2018, https://doi.org/10.26748/KSOE.2018.2.32.1.036