淹没矩形防波堤透反射系数特性研究

刘鹏飞; 郑永红; 王利生

淹没矩形防波堤透反射系数特性研究

中国科学院, 广州能源研究所, 广东, 广州, 510640

基金项目: 广东省自然科学基金资助项目(04000377)

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出版历程
- 收稿日期: 2005-12-12
- 修回日期: 2006-05-29

Reflection and transmission properties of submerged rectangular breakwaters

Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China

摘要

摘要: 采用解析方法研究了斜向入射波作用下淹没矩形防波堤的透反射系数特性.首先利用特征函数展开法导出了绕射势函数的分析解和透反射系数的计算公式,然后利用边界元方法验证了解析解,在此基础上利用解析解分析了若干工况下的防波堤透反射特性.计算结果表明,淹没矩形防波堤截面的宽度、高度和相对位置以及入射角的改变都不同程度影响反射系数和透射系数.在中等深度条件下,对于一定频率的波浪,位置和尺寸适当的淹没矩形堤可以反射大部分斜向入射波.研究结果对设计淹没的矩形防波堤具有重要的参考价值.
- 绕射势 /
- 反射系数 /
- 透射系数 /
- 淹没矩形防波堤
Abstract: An analytic method is used to analyze the transmission and reflection coefficients of a submerged rectangularbr eakwater (SRB) in oblique waves.The diffraction potential functions and expressions for reflection and transmission coefficients are obtained by using the eigenfunction expansion method.A boundary element method is used to verify the correctness of the present analytic method.The reflection and transmission properties of SRBs are studied for some specific cases.The results show that the geometrical parameters of SRBs and the angle of incident waves have appreciable influences on the transmission and reflection coefficients.The SRB can be an effective wave barrier for certain waves if properly designed in intermediate water.The results are useful for the design of SRBs.
- diffraction potential /
- reflection coefficients /
- transmission coefficients /
- submerged rectangular breakwater

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参考文献(15)

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