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首页> 外文期刊>Ocean Engineering >Wave scattering by submerged composite wavy plate breakwaters using a dual BEM
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Wave scattering by submerged composite wavy plate breakwaters using a dual BEM

机译：使用双重BEM的水下复合波浪板式防波堤的波散射

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摘要

The concept of the Bragg reflection is adapted to the design of submerged composite wavy plate breakwaters. Numerical analyses and laboratory experiments are performed to investigate the characteristics of the reflection due to submerged composite wavy plate breakwaters. The dual boundary element method (DBEM) is formulated and applied to study the impermeable composite wavy type plate breakwaters, which is modeled as a thin or zero thickness structure. The numerical method is validated by comparison with other previous published analytical solutions and reliable laboratory data of the same model. The reflection coefficients increase as the number of composite wavy plate breakwaters increases in both numerical results and laboratory measurements. In addition, the numerical results of wave reflection for a submerged, impermeable horizontal plate, a wavy plate and a composite wavy plate breakwater are presented and discussed. As expected, the performance is more effective for the composite wavy plate breakwater than for the other types of horizontal plate breakwaters. The numerical results show that when choosing a reasonable value of kh, the reflection coefficients of the composite wavy plate can be controlled to approximate the total reflection. (C) 2016 Elsevier Ltd. All rights reserved.
机译：布拉格反射的概念适用于水下复合波浪板式防波堤的设计。进行了数值分析和实验室实验，以研究淹没的复合波浪板式防波堤的反射特性。拟定了双重边界元法（DBEM），并应用于研究以薄或零厚度结构为模型的不渗透复合波浪型板式防波堤。通过与其他先前发布的分析解决方案以及同一模型的可靠实验室数据进行比较，验证了数值方法的有效性。在数值结果和实验室测量中，反射系数都随着复合波浪板防波堤数量的增加而增加。此外，还介绍并讨论了浸没式不渗透水平板，波浪板和复合波浪板防波堤波反射的数值结果。不出所料，复合波浪板式防波堤的性能比其他类型的水平板式防波堤更有效。数值结果表明，当选择合理的kh值时，可以控制复合波浪板的反射系数以近似全反射。 （C）2016 Elsevier Ltd.保留所有权利。

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