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Numerical Analysis of Reflection Characteristics of Perforated Breakwater with a Resonant Channel
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 Title & Authors
Numerical Analysis of Reflection Characteristics of Perforated Breakwater with a Resonant Channel
Kim, Jeong-Seok; Seo, Ji-Hye; Lee, Joong-Woo; Park, Woo-Sun;
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In this study, a new concept perforated breakwater is proposed, which is having resonant channels. In the channel, perforated plate is installed for dissipating wave energy induced by flow separations. The breakwater has two advantages compared with conventional perforated breakwater having wave chamber with slotted walls. One is easy to control the target wave condition for dissipating wave energy, and the other is having the high structural safety because the structural members are not exposed to impact waves, directly. To evaluate wave reflection characteristics of the proposed breakwater, numerical experiment was carried out by using Galerkin`s finite element model based on the linear potential theory. The results indicated that considerable energy dissipation occurs near the resonant period of channel, and wave reflection characteristics are affected by channel shape, location and opening ratio.
wave reflection;resonant channel;perforated breakwater;numerical analysis;finite element method;linear potential;
 Cited by
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