Two types of wave-current interactions and their effects on extreme waves in directional seas
Two types of wave-current interactions and their effects on extreme waves in directional seas
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DOI：
10.1016/j.oceaneng.2022.112637
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发表时间：
2022-10
影响因子：
5
通讯作者：
Jinghua Wang;Q. Ma;Zheng-jun Yang;Junliang Gao;Guoxiang Wu
中科院分区：
文献类型：
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作者：
Jinghua Wang;Q. Ma;Zheng-jun Yang;Junliang Gao;Guoxiang Wu
非线性波流相互作用可以显著影响和改变极值海浪的概率、频谱特征和平均形状(Wang，J.，Ma，Q.W.，&Yan，S.(2021))。关于有斜向流存在的定向海洋中的极端波浪。应用海洋研究，第112页，102586页)。现实中有不同的波与波相互作用的场景。这项研究确定了两种类型的波-流相互作用：类型I(波从流可忽略区传播到流显着区)和类型II(波从流显着区传播到流可忽略区)。采用完全非线性势流模型，研究了两种波流相互作用对极值波概率和波谱特性的影响。数值结果表明，第一类引起的极值波概率和谱性质的变化比第二类引起的要明显得多。建议在设计波浪-结构相互作用的数值模型或实验室试验时，应选择适当类型的波流相互作用情景，以更准确地表示局部波浪气候和水流条件。
The nonlinear wave-current interactions can influence and change extreme wave probability, spectral characteristics, and average shape of extreme waves significantly (Wang, J., Ma, Q. W., & Yan, S. (2021). On Extreme Waves in Directional Seas with Presence of Oblique Current.Applied Ocean Research, 112, pp. 102586). There are different scenarios of wave-wave interactions in reality. This study identifies two types of wave-current interactions: Type-I (waves propagating from current-negligible region to current-significant region) and Type-II (waves propagating from current-significant region to current-negligible region). The impacts of the two types of wave-current interactions on extreme wave probability and the spectral properties will be investigated by using fully nonlinear potential flow model. The numerical results reveal that the changes in extreme wave probability and spectral properties due to Type-I are more evident than those induced by Type-II. It is recommended that a proper type of wave-current interaction scenario should be selected in the design of the numerical modelling or laboratory experiments for wave-structure interactions to achieve more accurate representations of the local wave climate and flow conditions.