Journal of Coastal Disaster Prevention (한국연안방재학회지)

Korean Society of Coastal Disaster Prevention (한국연안방재학회)
권호 표지

A Numerical Study on Tsunami Run-up Heights on Impermeable/Permeable Slope

투과성 및 불투과성 경사면 상에서 지진해일의 처오름 높이에 관한 수치적 검토

  • Lee, Woo-Dong (Institute of Marine Industry, Gyeongsang National University) ;
  • Hur, Dong-Soo (Department of Ocean Civil Engineering, Gyeongsang National University) ;
  • Goo, Nam-Heon (LNG/Plant Civil Department, Dasan Consultants Co. Ltd.)
  • 이우동 (국립경상대학교 해양산업연구소) ;
  • 허동수 (국립경상대학교 해양토목공학과) ;
  • 구남헌 ((주)다산컨설턴트 특수사업부)
  • Received : 2013.12.28
  • Accepted : 2014.01.06
  • Published : 2014.01.31

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Abstract

In order to examine the characteristics of tsunami run-up heights on impermeable/permeable slope, a numerical wave tank by upgrading LES-WASS-3D was used in this study. Then, the model were compared with existing hydraulic model test for its verification. The numerical results well reproduced experimental results of solitary wave deformation, propagation and run-up height under various conditions. Also, the numerical simulation with a slope boundary condition has been carried out to understand solitary wave run-up on impermeable/permeable slope. It is shown that the run-up heights on permeable slope is 52.64-63.2% smaller than those on the impermeable slope because of wave energy dissipation inside the porous media. In addition, it is revealed that the numerical results with slope boundary condition agreed well with experimental results in comparison with the results by using stair type boundary condition.

Keywords

Acknowledgement

이 논문은 2013년도 정부(교육과학기술부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. 2013-0549).