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Harbor Tranquility Analysis with the Reflection-Transmission Boundary Condition of Floating Breakwaters  

전인식 (건국대학교 공과대학 토목공학과)
최민호 (건국대학교 공과대학 토목공학과)
심재설 (한국해양연구원 연안·항만공학연구본부)
오병철 (한국해양연구원 연안·항만공학연구본부)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.14, no.1, 2002 , pp. 76-85 More about this Journal
Abstract
The floating breakwater generally has an excellent water exchanging capability, but with some lowering harbor tranquility due to the wave transmission underneath floating body. In the initial stage of design, it is thus required to investigate several alternatives of breakwater layout for their performance of harbor tranquility. The present study aims to formulate a sort of reflection-transmission boundary condition of floating breakwater so that the existing numerical method using time dependent mild slope equation can still be applied to the case of floating breakwaters. The two and three dimensional tests were each performed to demonstrate the performance of the boundary condition. It was found that the reflection and transmission characteristics around the breakwater were well reproduced by the boundary condition. Finally, the reflection-transmission boundary condition were applied to a floating breakwater installed in an imaginary harbor with an irregular shape and bottom topography. The results surely showed that the present numerical method can effectively used in practical works related to the real sea construction of floating breakwaters.
Keywords
harbor tranquility; floating breakwater; mild slope equation; reflection-transmission boundary; semi-infinite breakwaters;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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