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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50622

Title: Mathematical study of wave interaction with a mound type of composite poroelastic submerged breakwater
Authors: Yuan-Jyh Lan
Tai-Wen Hsu
Fang-Xuan Gan
Chi-Yu Li
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: Wave scattering
Submerged poroelastic structures
Mound-type composite breakwaters
Wave-structure interaction
Date: 2016-09
Issue Date: 2018-10-19T05:55:20Z
Publisher: Ocean Engineering
Abstract: Abstract: In order to investigate the impact of applying pseudo-natural and ecological engineering protection means for coastal protection, the problem of wave propagation over a mound-type submerged poroelastic breakwater was solved theoretically. In this study, a breakwater was designed to be a double-layer structure to mimic a pseudo-natural structure with an inner rigid part and an outer soft layer. Different parameters, e.g. the relative dimensions of the inner and outer layers, the porosity and permeability were used to describe the characteristics of the breakwater. An analytical solution for describing the dynamic response of wave interaction with poroelastic media is presented. Linear wave theory was used to analyze wave motion based on an extension of Biot's theory including the turbulent frictional effect. An equation set was developed and solved to achieve a general solution for this type of problem. The solution was first validated by the theoretical solution and experiments of this problem. This solution was further applied to investigate the additional effect arising owing to flexibility of composite submerged permeable breakwaters on wave scattering and energy dissipation. The solution provides a theoretical and general way to pre-investigate problems of wave transformation over this type of submerged breakwaters.
Relation: 124 pp.1-12
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50622
Appears in Collections:[河海工程學系] 期刊論文

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