| Wave Defending Effects of V-Type Bottom-Mounted Breakwaters |
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| 作者姓名： | 缪国平 程建生 龙云祥 王景全 |
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| 作者单位： | [1]SchoolofNavalAwhitecture,OceanandCivilEngineering,ShanghaiJiaoTongUniversity,Shanghai200030,China [2]SchoolofNavalAwhitecture,OceanandCivilEngineering,ShanghaiJiaoTongUniversity,Shanghai200030,China／／EngineeringInstituteofEngineeringCorps,PIAUniversityofScienceandTechnology,Nanfing210007,China [3]SchoolofNavalAwhitecture,OceanandCivilEngineering,ShanghaiJiaoTongUniversity,Shanghai200030,China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina(GrantNo.50379026) |
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| 摘 要： | An analytical method is developed for the study of the wave defending effects of the V-type bottom-mounted breakwater. The breakwater is assumed to be rigid, thin, impermeable and vertically located in water of constant depth. The fluid domain is divided into three sub-regions by an imaginary interface. The velocity potential in each region is expanded by eigenfunctions. By satisfying the corresponding boundary conditions and matching conditions in and between sub-regions, a set of hnear algebraic equations can be obtained to determine the unknown coetfficients for the eigenfunction expansions for each sub-region. The accuracy of the present model is verified by a comparison with existing results for the case of an isolated breakwater. Numerical results, in the form of contour maps of the relative wave amplitude around the breakwater, are presented for a range of wave and breakwater parameters. The results show that the V-type bottommounted breakwater is generally effective in defending against waves. In general, the wave height in the protected area is about 20-50 percent of the incident wave height.
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| 关 键 词： | 防浪堤 波动衍射 速度势能 特征函数展开式 |
Wave Defending Effects of V-Type Bottom-Mounted Breakwaters |
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| Abstract: | |
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| Keywords: | V-type breakwater wave diffraction velocity potential eigenfunction expansion |
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