Bragg reflection of water waves by multiple floating horizontal flexible membranes with submerged rectangular bars on the seabed

被引：17

作者：

Ding, Wei-Wei ^{[1
]}

Zou, Zao-Jian ^{[1
,2
]}

Wu, Jing-Ping ^{[3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai, Peoples R China

[2] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai, Peoples R China

[3] Wuhan Univ Technol, Sch Transportat, Wuhan, Hubei, Peoples R China

来源：

APPLIED OCEAN RESEARCH | 2019年 / 83卷

关键词：

Bragg reflection; Floating horizontal flexible membranes; Submerged rectangular bars; Eigenfunction expansion method; Wide spacing approximation; FLEXURAL-GRAVITY WAVES; RESONANT REFLECTION; SCATTERING; PROPAGATION;

D O I：

10.1016/j.apor.2018.11.017

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Bragg reflection of water waves by multiple floating horizontal flexible membranes is investigated based on the linear wave theory and the assumption of small membrane response. Under the floating horizontal membranes, periodical submerged rectangular bars are arranged on the flat seabed. The total reflection and transmission coefficients are obtained by using the eigenfunction expansion method and the wide spacing approximation. The calculated coefficients are validated with the results available in the literature, which shows that the present method is applicable. The characteristics of Bragg reflection are systematically investigated by changing various parameters including the height of the rectangular bars, the number, the tension, the spacing, and the length of the flexible membranes. The results can help designing multiple floating horizontal flexible membranes as effective floating breakwaters by taking advantage of Bragg reflection.

引用

页码：103 / 111

页数：9

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