Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Numerical Simulation of Local Scour in Front of Impermeable Submerged Breakwater Using 2-D Coupled Hydro-morphodynamic Model

2차원 연성모델을 적용한 불투과성 잠제 전면의 국부세굴 모의

  • Lee, Woo-Dong (Institute of Marine Industry, Gyeongsang National University) ;
  • Lee, Jae-Cheol (Harbor Design Division, Hyein Engineering & Construction) ;
  • Jin, Dong-Hwan (Department of Coastal Management, GeoSystem Research Corporation) ;
  • Hur, Dong-Soo (Department of Ocean Civil Engineering, Gyeongsang National University)
  • 이우동 (국립경상대학교 해양산업연구소) ;
  • 이재철 ((주)혜인이엔씨 항만부) ;
  • 진동환 ((주)지오리서치시스템 연안관리부) ;
  • 허동수 (국립경상대학교 해양토목공학과)
  • Received : 2016.07.22
  • Accepted : 2016.12.16
  • Published : 2016.12.31
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Abstract

In order to understand the characteristics of the topography change in front of an impermeable breakwater, a coupled model for a two-way analysis of the existing LES-WASS-2D and newly developed morphodynamic model was suggested. A comparison to existing experimental results revealed that the results computed using the 2-D hydro-morphodynamic model were in good agreement with the experimental results for the wave form, pore water pressure in the seabed, and topographical change in front of a submerged breakwater. It was shown that the two-way model suggested in this study is applicable to a morphological change in the seabed around a submerged breakwater. Then, using the numerical results, the topographical changes in front of an impermeable submerged breakwater were examined in relation to partial standing waves. Moreover, the characteristics of the local scour depths in front of them are also discussed in relation to incident wave conditions, sediment qualities, and submerged breakwater shapes.

Keywords

References

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