Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Numerical Study for Experiment on Wave Pattern of Internal Wave and Surface Wave in Stratified Fluid

성층화된 유체 내에서 내부파와 표면파의 파형 변화 실험을 위한 수치적 연구

  • Lee, Ju-Han (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Kim, Kwan-Woo (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Paik, Kwang-Jun (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Koo, Won-Cheol (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Kim, Yeong-Gyu (Agency for Defense Development)
  • 이주한 (인하대학교 조선해양공학과) ;
  • 김관우 (인하대학교 조선해양공학과) ;
  • 백광준 (인하대학교 조선해양공학과) ;
  • 구원철 (인하대학교 조선해양공학과) ;
  • 김영규 (국방과학연구소)
  • Received : 2019.01.23
  • Accepted : 2019.06.13
  • Published : 2019.06.30
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Abstract

Internal waves occur at the interface between two layers caused by a seawater density difference. The internal waves generated by a body moving in a two-layer fluid are also related to the generation of surface waves because of their interaction. In these complex flow phenomena, the experimental measurements and experimental set-up for the wave patterns of the internal waves and surface waves are very difficult to perform in a laboratory. Therefore, studies have mainly been carried out using numerical analysis. However, model tests are needed to evaluate the accuracy of numerical models. In this study, the various experimental conditions were evaluated using CFD simulations before experiments to measure the wave patterns of the internal waves and surface waves in a stratified two-layer fluid. The numerical simulation conditions included variations in the densities of the fluids, depth of the two-layer fluid, and moving speed of the underwater body.

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References

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