| 部分反射直墙前潜堤水动力特性研究 |
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| 引用本文： | 刘勇,何士艳.部分反射直墙前潜堤水动力特性研究[J].海洋学报,2012,34(6):210-216. |
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| 作者姓名： | 刘勇 何士艳 |
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| 作者单位： | 1.南京水利科学研究院 港口航道泥沙工程交通行业重点实验室, 江苏 南京, 210024;中国海洋大学, 山东省海洋工程重点实验室, 山东 青岛 266100 |
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| 基金项目： | 国家自然科学基金(50909086;51010009);南京水利科学研究院港口航道泥沙工程交通行业重点实验室开放基金。 |
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| 摘 要： | 基于线性势流理论,对部分反射直墙前潜堤的水动力特性进行了理论研究。利用匹配特征函数展开法给出了潜堤透射系数和反射系数的计算方法,计算结果与边界元方法的计算结果一致。利用数值算例分析了潜堤透射系数和反射系数的主要影响因素。增大部分反射直墙的反射系数,将加大潜堤的透射系数。随着潜堤相对宽度或潜堤与直墙之间相对间距的增加,潜堤透射系数和反射系数呈周期性变化,但变化规律相反。
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| 关 键 词： | 潜堤 部分反射边界 透射系数 反射系数 |
| 收稿时间： | 2011/12/25 0:00:00 |
| 修稿时间： | 2012/3/20 0:00:00 |
An analysis on the hydrodynamic performance of a submerged breakwater in front of a partially reflecting sidewall |
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| LIU Yong and HE Shiyan.An analysis on the hydrodynamic performance of a submerged breakwater in front of a partially reflecting sidewall[J].Acta Oceanologica Sinica (in Chinese),2012,34(6):210-216. |
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| Authors: | LIU Yong and HE Shiyan |
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| Institution: | 1.Key Laboratory of Communication of Port, Channel and Sediment Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China;Key Laboratory of Shandong Province for Ocean Engineering, Ocean University of China, Qingdao 266100, China2.Key Laboratory of Shandong Province for Ocean Engineering, Ocean University of China, Qingdao 266100, China |
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| Abstract: | On the basis of linear potential theory,an analytical study on the hydrodynamic performance of a submerged breakwater is given in front of a partially reflecting sidewall.The calculating method of the transmission and reflection coefficients of the submerged breakwater is developed by using the matched eigenfunction expansion method.The calculated results of the transmission and reflection coefficients agree very well with those by the boundary element method.The main effect factors of the transmission and reflection coefficients of the breakwater are analyzed.The transmission coefficient of the submerged breakwater increases with the increasing reflection coefficient of the partially reflecting sidewall.With the increasing value of the relative breakwater width or the relative space between the breakwater and the sidewall,both the transmission coefficient and the reflection coefficient of the breakwater vary periodically.But the variations of the reflection and transmission coefficients are just the opposite. |
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| Keywords: | submerged breakwater partially reflecting boundary transmission coefficient reflection coefficient |
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