KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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Numerical Simulation of Surge - Wave Combined Inundation at Mokpo North Harbor

목포 북항에서 풍파에 의한 해수범람의 수치 모의

  • 이정렬 (성균관대학교 사회환경시스템공학과) ;
  • 강주환 (목포대학교 건설공학부) ;
  • 윤종태 (경성대학교 건설환경공학부)
  • Received : 2007.11.28
  • Accepted : 2007.12.22
  • Published : 2008.05.31
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Abstract

Tidal amplification by construction of sea-dike and sea-walls had been detected not only near Mokpo North Harbor but also at Chungkye Bay which is connected with Mokpo North Harbor by a narrow channel. This brings about increase of tidal flat area and in particular increase of runup height and inundation area during storms. In this study, a simulation process is composed of wind wave generation model for large area and wave inundation model for small coastal zone. The nonlinear version of mild-slope equation is modified for simulating wind-driven surge and wave inundation at a small area. The models are applied to Chungkye Bay, and possible inundation features at Mokpo North Harbor are investigated.

방조제 건설로 인한 조석확폭 현상이 목포 북항은 물론 목포북항과 좁은 수로로 연결된 청계만에서도 발생되고 있다. 이러한 조석확폭 현상은 조간대를 증가시키고 특히 폭풍우시 수위 증가와 침수구간의 확대를 초래한다. 본 연구에서의 모의 과정은 광역에서의 풍파 모의와 협역에서의 풍파 범람 모의로 구성된다. 비선형 완경사 방정식이 바람에 의한 풍파는 물론 해일과 범람도 모의하도록 개선되었다. 개발된 모형은 청계만에 적용되었으며 목포 북항에는 청계만에서 발생하는 풍파로 인하여 발생할 수 있는 범람 형태를 파악하기 위하여 적용되었다.

Keywords

References

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