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http://dx.doi.org/10.5657/kfas.2005.38.5.316

Hydraulic Characteristics and Dynamic Behaviors of Floating Breakwater with Vertical Plates  

SOHN Byung-Kyu (Fisheries Engineering Division, NFRDI)
YANG Yong-Su (Fisheries Engineering Division, NFRDI)
JEONG Seong-Jae (Fisheries Engineering Division, NFRDI)
SHIN Jong-Keon (Fisheries Engineering Division, NFRDI)
KIM Do-Sam (Division of Civil And Environmental Engineering, Korea Maritime University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.38, no.5, 2005 , pp. 316-322 More about this Journal
Abstract
In order to develop a floating breakwater, which can efficiently control long period waves, vertical plates are attached in pontoon. Wave control and dynamic behaviors of the newly developed vertical plates type are verified from numerical analysis and hydraulic experiment. As a result, for the wave control and energy dissipation, the newly developed vertical plates type is more efficient than the conventional pontoon type. For the floating body motion, the wave transmission, depending on incident wave period, is decreased at the natural frequency. Dimensionless drift distance has similar trend of the reflection rate of wave transformation near natural frequency except maximum and minimum values. Dimensionless maximum tension is 17 percent of the weight of floating breakwater in case of the conventional pontoon type and 18 percent or 14 percent in case of the newly developed vertical plates type. Thus, it is shown that the wave control is improved by the vertical plates type. In addition, by adjusting the interval of the front and back vertical plate, we would control proper wave control.
Keywords
Wave control; Floating breakwater; Dynamic behaviors; Natural frequency;
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