Journal of Korean Port Research (한국항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Prediction of Wave-Induced Current Using Time-Dependent Wave Model

쌍곡선형 파랑모형을 이용한 해빈류 예측

  • 김재중 (동아대학교 해양공학과) ;
  • 이정만 (동아대학교 해양공학과 대학원)
  • Published : 1998.12.01
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Abstract

A Wave-induced current model is developed in our study and this model is composed with wave transform model and current model. Two types of wave model are used in our study one is Copeland(1985) type which is applied in the offshore region and the other is Watanabe and Maruyama(1984) type which is applied in the surf zone. The depth-integrated and time-averaged governing equation of an unsteady nonlinear form is used in the wave induced current model. Lateral mixing radiation stresses surface and bottom stresses are considered in our current model. Copeland’s(1976) is used as a surface friction formula. Numerical solutions are obtained by Leendertse scheme and compared with Noda’s(1974) experimental results for the uniform slope coastal region test and Nishimura & Naruyama’s (1985) experimental results and numerical simulation results for the detached breakwater. The results from our wave model and wave model and wave-induced current model show good agreements with the others and also show nonlinear effects around the detached breakwater. The model in this study can be applied in the surf zone considering the friction stresses.

Keywords

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