Journal of Korean Society of Coastal and Ocean Engineers (한국해안해양공학회지)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Numerical Simulation of Nearshore Morphological Changes near Groins

突堤 周邊의 海岸地形 變化 豫測模型

  • 김태림 (한국해양연구소 연안.항만공학연구센터) ;
  • 김창식 (한국해양연구소 연안.항만공학연구센터) ;
  • 박광순 (한국해양연구소 연안.항만공학연구센터) ;
  • 심재설 (한국해양연구소 연안.항만공학연구센터) ;
  • 오병철 (한국해양연구소 연안.항만공학연구센터)
  • Published : 1998.12.01
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Abstract

Morphological changes around the groin system in the beach are examined using a numerical model. The model consists of two parts : the hydrodynamic model which calculates the transformation of waves and currents, and the sediment transport model which determines sediment transport rates and bottom topographic changes. The numerical model is applied to single-groin and three-groin systems on a typical plane beach. The changes to the beach system due to waves and currents during 150-day simulation near the groins are calculated using sediment transport rate patterns in the domain. The sand by-passing rate patterns around groins are also evaluated.

해안 구조물인 돌제(groins)의 축조로 인한 해안 지형 변화를 수치모델을 통하여 살펴보았다. 수치모델은 크게 파랑과 흐름을 계산하는 동수력학적 부분과 이로부터 구해진 외력을 이용하여 지형변화를 계산하는 퇴적물 이동부분으로 구성된다. 본 연구에서 일정한 경사를 갖는 해안에 축조된 한 개의 돌제 및 3개의 돌제 시스템에 수치모델을 적용하여 파랑 및 흐름 양상의 변화로 인한 퇴적물 이동 양상과 150일간에 걸친 해안지형 변화를 계산하였다. 또한 시간에 따른 돌제 통과 퇴적물 이동량 변화도 살펴보았다

Keywords

References

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