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

The Society of Naval Architects of Korea (대한조선학회)
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A Numerical Analysis of the Supercavitating Flow around Three-Dimensional Axisymmetric Cavitators

3차원 축대칭 캐비테이터의 초월공동유동 수치해석

  • Kim, Ji-Hye (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Jang, Hyun-Gill (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Ahn, Byoung-Kwon (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Lee, Chang-Sup (Department of Naval Architecture & Ocean Engineering, Chungnam National University)
  • 김지혜 (충남대학교 선박해양공학과) ;
  • 장현길 (충남대학교 선박해양공학과) ;
  • 안병권 (충남대학교 선박해양공학과) ;
  • 이창섭 (충남대학교 선박해양공학과)
  • Received : 2013.02.21
  • Accepted : 2013.05.22
  • Published : 2013.06.20
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Abstract

Recently submerged objects moving at high speed such as a supercavitating torpedo have been studied for their practical advantage of the dramatic drag reduction. In this study, we are focusing our attention on supercavitating flows around axisymmetric cavitators; a numerical method based on inviscid flow is developed and predicted supercavities around several shapes of 2D and 3D cavitators are presented. The results are validated by comparison of existing theoretical and empirical results. In addition, characteristic features of supercavity shapes and drag forces acting on a real scale torpedo are evaluated according to practically appropriate operating conditions.

Keywords

References

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  2. Ahn, B.K. Jang, H.G. Kim, H.T. & Lee, C.S., 2012. Numerical analysis of axisymmetric supercavitating flows. 8th International Symposium on Cavitation, Singapore, 14-16 August 2012.
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