한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제33권3호
  • /
  • Pages.245-251
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  • 2019
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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CFD-DEM 연계기법을 활용한 고정식 해양구조물의 모노파일 주위 유동 및 세굴해석

Flow and Scour Analysis Around Monopole of Fixed Offshore Platform Using Method that Couples Computational Fluid Dynamics and Discrete Element Method

  • 송성진 (한국해양대학교 해양공학과) ;
  • 전우영 (한국해양대학교 해양공학과) ;
  • 박선호 (한국해양대학교 해양공학과)
  • Song, Seongjin (Department of Ocean Engineering, Korea Maritime and Ocean University) ;
  • Jeon, Wooyoung (Department of Ocean Engineering, Korea Maritime and Ocean University) ;
  • Park, Sunho (Department of Ocean Engineering, Korea Maritime and Ocean University)
  • 투고 : 2019.03.29
  • 심사 : 2019.06.13
  • 발행 : 2019.06.30
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초록

When an offshore foundation is exposed to waves and currents, local scour could develop around a pile and even lead to structural failure. Therefore, understanding and predicting the scour due to sediment transport around foundations are important in the engineering design. In this study, the flow and scour around a monopole foundation exposed to a current were investigated using a method that coupled the computational fluid dynamics (CFD) and discrete element method (DEM). The open source computation fluid dynamics library OpenFOAM and a sediment transport library were coupled in the OpenFOAM platform. The incipient motion of the particle was validated. The flow fields and sediment transport around the monopole were simulated. The scour depth development was simulated and compared with existing experimental data. For the upstream scour hole, the equilibrium scour depth could be reproduced qualitatively, and it was underestimated by about 23%.

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참고문헌

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