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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Numerical Analysis of the Supercavitating Underwater Vehicle According to Different Shapes and Depth Conditions Using a VP-BEM Method

VP-BEM 기법을 이용한 초공동 수중 운동체의 형상 및 수심 변화에 따른 수치해석

  • Hwang, Dae-Gyu (Department of Naval Architecture and Ocean Engineering, Chungnam National University) ;
  • Ahn, Byoung-Kwon (Department of Naval Architecture and Ocean Engineering, Chungnam National University) ;
  • Park, Jeong-Hoon (Mechanical R&D Center, LIGNex1 Co., Ltd.) ;
  • Jeon, Yun-Ho (Mechanical R&D Center, LIGNex1 Co., Ltd.) ;
  • Hwang, Jong-Hyon (Maritime R&D Center, LIGNex1 Co., Ltd.)
  • 황대규 (충남대학교 선박해양공학과) ;
  • 안병권 (충남대학교 선박해양공학과) ;
  • 박정훈 (LIG넥스원(주) 기계융합연구소) ;
  • 전윤호 (LIG넥스원(주) 기계융합연구소) ;
  • 황종현 (LIG넥스원(주) 해양연구소)
  • Received : 2020.12.24
  • Accepted : 2021.03.19
  • Published : 2021.04.05
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Abstract

In recent years, the maturity of the technology for a high speed underwater vehicle using supercavitation increase, it is entering the stage of applied research for practical use. In this study, hydrodynamic performance of the supercavitating object was evaluated by using a Viscous-Potential based Boundary Element Method(VP-BEM). 27 models with different shape parameters such as body diameter, length and fore-body shape were considered. The process of the supercavity development of each model was simulated, and drag generated according to operating conditions such as changes in water depth was analyzed.

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References

  1. Wu, T., "A Free Streamline Theory for Two-Dimensional Fully Cavitated Hydrofoils," Journal of Mathematics and Physics, 35, pp. 403-442. 1956.
  2. Tulin, M., "Steady Two-Dimensional Cavity Flows about Slender Bodies," Navy Dept.: Washington D.C., 1953.
  3. Lee C. S., "A Potential-Based Panel Method for the Analysis of a Two-Dimensional Partially-Cavitating Hydrofoil," Papers of The Society of Naval Architects of Korea, Vol. 1, pp. 15-25, 1993.
  4. Kim, J. H. Jung, S. W. Ahn, B. K. & Jeon, Y. H., "A Study on Natural Supercavitation and Drag Characteristics of Axisymmetric Cavitators," Journal of the Society of Naval Architects of Korea, Vol. 53, No. 6, pp. 465-472, December 2016. https://doi.org/10.3744/SNAK.2016.53.6.465
  5. Ahn, B. K. Jung, S. W. Kim, J. H. Jung, Y. R. & Kim, S. B., "Experimental Study on Artificial Supercavitation of the High Speed Torpedo," Journal of the Korea Institute of Military Science and Technology, Vol. 18, No. 3, pp. 300-308, 2015. https://doi.org/10.9766/KIMST.2015.18.3.300
  6. Jung, S. W. Park, S. T. & Ahn, B. K. An, "Experimental Study on Hydrodynamic Characteristics of a Control Fin for a Supercavitating Underwater Vehicle," Journal of the Society of Naval Architects of Korea, Vol. 55, No. 1, pp. 75-82, February 2018. https://doi.org/10.3744/SNAK.2018.55.1.75
  7. Jung, S. W. Park, S. T. & Ahn, B. K., "Experimental Investigation of Artificial Supercavitation under Periodic Gust Flows," Journal of the Korea Institute of Military Science and Technology, Vol. 21, No. 2, pp. 188-194, 2018. https://doi.org/10.9766/KIMST.2018.21.2.188
  8. Kim, M. J. Yi, J. G. Kim, S. B., "The Study of Prediction Method of Cavity Shape Considering Both Gravity Effect and Angle of Attack of Cavitator," Journal of the Korea Institute of Military Science and Technology, Vol. 21, No. 2, pp. 180-187, 2018. https://doi.org/10.9766/KIMST.2018.21.2.180
  9. Ahn, B. K. Kim, J. H. Choi, J. K. Kim, H. T. Nah, Y. I. & Lee D. H., "Numerical Analysis of Supercavitating Flows based on Viscous/Inviscid Method," Journal of the Korea Institute of Military Science and Technology, Vol. 17, No. 1, pp. 25-32, 2014. https://doi.org/10.9766/KIMST.2014.17.1.025