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標題: Wave Height Transformation and Set-up Between A Submerged Permeable Breakwater and A Seawall
作者: Tsai, C.P.
Yu, C.H.
Chen, H.B.
Chen, H.Y.
關鍵字: wave height transformation;water piling-up;wave set-up;submerged;permeable breakwater;seawall;time-dependent mild-slope equations;porous structures
Project: China Ocean Engineering
期刊/報告no:: China Ocean Engineering, Volume 26, Issue 1, Page(s) 167-176.
In this study, we investigated wave transformation and wave set-up between a submerged permeable breakwater and a seawall. Modified time-dependent mild-slope equations, which involve parameters of the porous medium, were used to calculate the wave height transformation and the mean water level change around a submerged breakwater. The numerical solution is verified with experimental data. The simulated results show that modulations of the wave profile and wave set-up are clearly observed between the submerged breakwater and the seawall. In contrast to cases without a seawall, the node or pseudo-node of wave height evolution can be found between the submerged breakwater and the seawall. Higher wave set-up occurs if the nodal or pseudo-nodal point appears near the submerged breakwater. We also examined the influence of the porosity and friction factor of the submerged permeable breakwater on wave transformation and set-up.
ISSN: 0890-5487
DOI: 10.1007/s13344-012-0012-6
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