The influence of directional spreading on rogue waves triggered by abrupt depth transitions

The influence of directional spreading on rogue waves triggered by abrupt depth transitions
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方向传播对突然深度转变引发的异常波的影响

DOI:
10.1017/jfm.2023.737
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发表时间:
2023
影响因子:
3.7
通讯作者:
Tang T
Tang T
中科院分区:
工程技术2区
文献类型:
--
作者:
Tang T

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相对于标准分布,通过水深突然减小的单向波可以引起异常波的数量增加。我们研究这种现象在一个更一般的设置多方向波。我们使用实验室实验和完全非线性势流模拟研究方向性对流氓波发生概率的影响。通过对随机波统计数据的分析,我们发现相对于单向海,定向传播降低了流氓波的形成概率。然而,对于海洋中定向传播的典型值(),我们的数值结果表明,在深度不连续的顶部之外,流氓波的数量仍然有显着的增加。
An increased number of rogue waves, relative to standard distributions, can be induced by unidirectional waves passing over abrupt decreases in water depth. We investigate this phenomenon in a more general setting of multidirectional waves. We examine the influence of the directionality on the occurrence probability of rogue waves using laboratory experiments and fully nonlinear potential flow simulations. Based on the analysis of the statistics of random waves, we find that directional spreading reduces the formation probability of rogue waves relative to unidirectional seas. Nevertheless, for typical values of directional spreading in the ocean (), our numerical results suggest that there is still a significant enhancement to the number of rogue waves just beyond the top of a depth discontinuity.
DOI: 10.1007/s40722-022-00269-4
发表时间: 2022-11
影响因子: 1.9
作者:
Zhenhao Li;T. Tang;Yan Li;S. Draycott;T. S. van den Bremer;T. Adcock
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DOI: --
发表时间: 2022
期刊: Volume 5B: Ocean Engineering; Honoring Symposium for Professor Günther F. Clauss on Hydrodynamics and Ocean Engineering
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