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Rip current reduction at the open inlet between double submerged breakwaters by installing a drainage channel

机译:通过安装排水通道,在双潜防波堤之间的开放式进口处降低水流电流

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摘要

In this study, we performed two-dimensional hydraulic experiments to analyze the hydrodynamic characteristics of wave height, surface elevation, and flow around single submerged breakwater with a drainage channel under regular waves corresponding to storm and normal conditions. On the basis of the two-dimensional experimental results, we also performed three-dimensional numerical simulations to specifically analyze hydrodynamic characteristics around double submerged breakwaters with the drainage channel, and compare the numerical results with the experimental results. Compared the numerical results with the experimental results, the numerical results agree well with the experimental results. The numerical and experimental results reveal that the proposed single and double submerged breakwaters with the drainage channel reduces the surface elevation behind the submerged breakwater and rip currents flowing offshore through the open inlet between double submerged breakwaters. Therefore, we see that, the rip currents, that cause scour around the lower part of the open inlet and affect the stability of the submerged breakwaters, can be reduced by installing a drainage channel.
机译:在这项研究中,我们进行了二维水力实验,以分析在与风暴和正常情况相对应的规则波浪作用下,带有排水通道的单个淹没式防波堤周围的波高,表面高度和水流的水动力特性。在二维实验结果的基础上,我们还进行了三维数值模拟,专门分析了带排水通道的双淹水防波堤周围的水动力特性,并将数值结果与实验结果进行了比较。将数值结果与实验结果进行比较,数值结果与实验结果吻合良好。数值和实验结果表明,拟议的带排水通道的单人和双人淹没式防波堤降低了淹没式防波堤后面的表面高度,并降低了流经双淹没式防波堤之间的开放式入口的离岸水流。因此,我们看到,可通过安装排水通道来减少引起开放式开口下部冲刷并影响水下防波堤稳定性的水流。

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