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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on the Ship Wake Model under the Ocean Environment

해상 환경을 고려한 수상함 항적 모델 연구

  • Bae, Ho Seuk (Maritime Technology Research Institute, Agency for Defense Development) ;
  • Kim, Won-Ki (Maritime Technology Research Institute, Agency for Defense Development) ;
  • Son, Su-Uk (Maritime Technology Research Institute, Agency for Defense Development) ;
  • Kim, Woo-Shik (Maritime Technology Research Institute, Agency for Defense Development) ;
  • Park, Joung-Soo (Maritime Technology Research Institute, Agency for Defense Development)
  • 배호석 (국방과학연구소 해양기술연구원) ;
  • 김원기 (국방과학연구소 해양기술연구원) ;
  • 손수욱 (국방과학연구소 해양기술연구원) ;
  • 김우식 (국방과학연구소 해양기술연구원) ;
  • 박정수 (국방과학연구소 해양기술연구원)
  • Received : 2020.11.04
  • Accepted : 2021.01.15
  • Published : 2021.02.05
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Abstract

The ship wake generated by rotation of the propeller yields changes of characteristics of sound wave such as attenuation and scattering. To develope a battle field environment simulator for military purposes, it is very important to understand acoustical properties of ship wake. Existing research results have limitations in direct application because they performed under simple conditions or model ships were applied. In this study, we developed a ship wake generation model based on the ship's geometric wake distribution theory. The model can provide spatial distribution and void fraction with various marine environments as well as ship size. Through the developed model, geometric distribution features of ship wake according to the ship's maneuvering conditions were successfully simulated. In addition, changes of the bubble void fraction with time at any location within the battle field environment were identified. Therefore, the developed model is expected to be used in the development of a simulator to measure the acoustic characteristics of the ship wake.

Keywords

References

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