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해운대 해수욕장의 이안류 발생기구 및 수치모의

Generation Mechanism and Numerical Simulation of Rip Current at Haeundae Beach

이정렬|이주용|김인철
한국해안,해양공학회|2011.02|한국해안·해양공학회논문집 (Journal of Korean Society of Coastal and Ocean Engineers)|제23권 제1호|pp. 70-78

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참고문헌

키워드

numerical simulation이안류수치모의rip current해운대 해수욕장Haeundae Beach해빈류 모형튜브 거동HAECUMtube-wave interaction
주제분류토목공학

초록

At Haeundae Beach in Busan, people were swept away by the fast-moving rip current and rescued, on August 13th and 15th, 2009 & July 29th and 30th, 2010. In predicting the wave-induced current and consequent tube movement for public safety, the coastal flows and waves are calculated at each time step and grid point by means of systematic interfacing of hydrodynamic and wave models (Lee, 2001). To provide a user-friendly simulation tool for end-users, the forecasting system has been built in a software package called HAECUM. Outputs from the system are viewed as graphs of tube positions with combined current vectors for easy decision of emergency management officials. The tube-wave interaction is taken into account and the traces of swim tube are simulated by using a Lagrangian random walk (Chorin, 1978; Lee, 1994). In this study, we use the Lee’s approach (Lee, 1993) in estimating the surface onshore currents due to wave breaking.

Abstract

At Haeundae Beach in Busan, people were swept away by the fast-moving rip current and rescued, on August 13th and 15th, 2009 & July 29th and 30th, 2010. In predicting the wave-induced current and consequent tube movement for public safety, the coastal flows and waves are calculated at each time step and grid point by means of systematic interfacing of hydrodynamic and wave models (Lee, 2001). To provide a user-friendly simulation tool for end-users, the forecasting system has been built in a software package called HAECUM. Outputs from the system are viewed as graphs of tube positions with combined current vectors for easy decision of emergency management officials. The tube-wave interaction is taken into account and the traces of swim tube are simulated by using a Lagrangian random walk (Chorin, 1978; Lee, 1994). In this study, we use the Lee’s approach (Lee, 1993) in estimating the surface onshore currents due to wave breaking.

참고문헌 (42)

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