National Taiwan Ocean University Institutional Repository:Item 987654321/46455
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 28611/40649
造访人次 : 635401      在线人数 : 47
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 进阶搜寻


题名: Numerical simulation of hydrodynamic behavior on wave-flap structure interactions with a SPH model
作者: David Chen;S Y Tzang;N Y Zeng;C M Hsieh;Robert R Hwang;Jiahn-Horng Chen
贡献者: 國立臺灣海洋大學:機械與機電工程學系
日期: 2012
上传时间: 2018-05-17T07:31:44Z
出版者: Conference: International Conference on Asian and Pacific Coasts
摘要: Abstract:In this study, a SPH model is preliminarily applied to estimate the interactions between a bottom-hinged wave energy converter (WEC) and free surface waves in a 2-D numerical wave flume. To estimate the capturing efficiency of a WEC in this flume, a monochromatic wave with height of 7.15 cm and period of 1.56 s based on a model scale of 1:20 of the in-situ wave conditions were adopted. The results show that the loading waves can cause the flapper to stably swing back and forth within average ranges of 16~18 degrees. The phases could directly influence the flapper's swinging and should potentially play a key role in capturing wave energy. Comparisons of the velocity profiles at different phases further illustrate that elliptical form of water particle trajectory could directly influence the rotations of flapper. When the flapper undergoes small rotations, most of the counterclockwise vortices in the weather side and clockwise ones in the lee side have occurred around the flapper. But when the flapper undergoes large rotations, those vortices would only occur near free-surface. Meanwhile, the circulations in the lee side of the flapper have increased while those in the weather side have decreased
显示于类别:[系統工程暨造船學系] 演講及研討會





著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈