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

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Development of the Combined Typhoon Surge-Tide-Wave Numerical Model 2. Verification of the Combined model for the case of Typhoon Maemi

천해에 적용가능한 태풍 해일-조석-파랑 수치모델 개발 2. 태풍 매미에 의한 해일-조석-파랑 모델의 정확성 검토

  • Chun, Je-Ho (Institue of Construction and Environmental Research, Handong Global University) ;
  • Ahn, Kyung-Mo (School of Spatial Environment System Engineering, Handong Global University) ;
  • Yoon, Jong-Tae (Department of Civil Engineering, Kyungsung University)
  • 천제호 (한동대학교 건설환경연구소) ;
  • 안경모 (한동대학교 공간환경시스템공학부) ;
  • 윤종태 (경성대학교 토목공학과)
  • Published : 2009.02.28
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Abstract

This paper presents the development of dynamically combined Typhoon generated surge-tide-wave numerical model which is applicable from deep to shallow water. The dynamically coupled model consists of hydrodynamic module and wind wave module. The hydrodynamic module is modified from POM and wind wave module is modified from WAM to be applicable from deep to shallow water. Hydrodynamic module computes tidal currents, sea surface elevations and storm surges and provide these information to wind wave module. Wind wave mudule computes wind waves and provides computed information such as radiation stress, sea surface roughness and shear stress due to winds. The newly developed model was applied to compute the surge, tide and wave fields by typhoon Maemi. Verification of model performance was made by comparison of measured waves and tide data with simulated results.

본 논문에서는 심해부터 천해에 까지 적용가능한 동적결합형 태풍 해일-조석-파랑 수치모델을 태풍 매미에 적용하여 모델의 안정성과 정확성을 검증하였다. 동적결합형 모델은 해수유동 모델인 POM을 수정한 모듈과 심해 풍파모델인 WAM을 심해부터 천해까지 적용가능하도록 수정한 모듈로 구성되어 있다. 수정 POM 모듈에서 조위, 조류 와 해일을 계산하며, 수정 WAM 모듈에서 풍파를 계산하여 상호 계산된 결과를 주고 받도록 결합된 동적결합형 모델이다. 수정 WAM 모듈에서는 잉여응력과 바람에 의한 마찰응력, 해수면 조도계수 등의 계산결과가 POM으로 제공되며 수정 POM 모듈에서는 유속, 조위면 등의 정보가 WAM으로 제공된다. 개발된 수치모델을 태풍 매미에 적용하여 계산된 결과를 관측된 파랑 및 조위자료와 비교하여 정확성을 검증하였다.

Keywords

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