Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Evaluation of Empirical Porous-Media Parameters for Numerical Simulation of Wave Pressure on Caisson Breakwater Armored with Tetrapods

테트라포드 피복 케이슨 방파제 파압 수치모의를 위한 투수층 경험계수 산정

  • Lee, Geun Se (Dept. of Civil & Env. System Engrg, Graduate School, Hanyang University) ;
  • Oh, Sang-Ho (Coastal Engineering Division, Korea Institute of Ocean Science and Technology) ;
  • Yoon, Sung Bum (Dept. of Civil, & Env. Engrg, ERICA Campus, Hanyang University)
  • 이건세 (한양대학교 건설환경시스템공학과) ;
  • 오상호 (한국해양과학기술원 연안공학연구본부) ;
  • 윤성범 (한양대학교 건설환경공학과)
  • Received : 2019.11.18
  • Accepted : 2019.12.05
  • Published : 2019.12.31
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Abstract

In this study, waves2Foam implemented in OpenFOAM is used to simulate numerically the wave pressure on a verical caisson under the condition of with and without the placement of Tetrapods in front of the caisson. The comparisons of the numerical results and the experimental data show fairly good agreement between them. Based on this, it is possible to suggest an optimal combination of coefficients for an empirical formula to represent the protective TTP layer as porous media.

본 연구에서는 3차원 유동해석 수치모형인 OpenFOAM의 waves2Foam을 사용하여 무공케이슨 방파제의 전면이 피복되지 않은 조건과 테트라포드(TTP)로 피복된 조건에서 직립 케이슨에 작용하는 파압을 수치모의하고 수리실험 결과와 비교하였다. 파압 수치모의 결과는 수리실험 결과와 상당히 잘 일치하였다. 이를 통해 테트라포드로 피복된 영역을 다공성 매체로 구현할 수 있는 경험식의 최적 파라미터 조합을 제시하였다.

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References

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