波状浪涌对垂直墙壁的影响

IF 2.2 3区 地球科学 Q2 OCEANOGRAPHY
Feidong Zheng, Yaan Hu, Xueyi Li, Guiyang Liu
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引用次数: 0

摘要

在本研究中,实验研究了在流速和流深瞬时变化的复杂基流条件下,波状浪涌对垂直壁的影响。通过下游水槽的充水操作,在一个长形水平波浪槽中产生了不同波型、波幅范围较宽的波状浪涌。在波墙相互作用过程中,观察到了两种不同特征的最大波压:脉动波压出现在接近基流表面的高程处,冲击波压出现在更高的高程处。研究发现,脉动波压力可完全根据最大波浪上升高度估算,与浪涌类型无关。此外,非破碎波状浪涌产生的最大波浪载荷也取决于最大波浪上升高度。此外,本研究结果表明,基流条件对波状浪涌-浪墙相互作用的影响可以忽略不计。此外,浅水区孤波的破浪标准可用作浪涌类型过渡的估算,与基流条件无关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Impact of undular surges on a vertical wall

Impact of undular surges on a vertical wall

In the current study, the impact of undular surges on a vertical wall was experimentally investigated under complex base flow conditions where the velocity and flow depth were instantaneously varied. Undular surges of different wave types and with a wide spectrum of wave amplitudes were generated in a long horizontal wave tank by the filling operation of a downstream tank. Two characterized maximum wave pressures were observed during wave-wall interactions: pulsating wave pressure at an elevation close to the base flow surface and impact wave pressure occurring at a much higher elevation. It was found that the pulsating wave pressure could be solely estimated from the maximum wave run-up height, independently of the surge type. Moreover, the maximum wave load exerted by nonbreaking undular surges also depended on the maximum wave run-up height. Furthermore, the present results indicated that the influence of base flow conditions on undular surge-wall interactions were negligible. In addition, the breaking criterion of solitary waves in shallow water region could be used as an estimate of the transition in surge type, independently of the base flow conditions.

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来源期刊
Ocean Dynamics
Ocean Dynamics 地学-海洋学
CiteScore
5.40
自引率
0.00%
发文量
37
审稿时长
6-12 weeks
期刊介绍: Ocean Dynamics is an international journal that aims to publish high-quality peer-reviewed articles in the following areas of research: Theoretical oceanography (new theoretical concepts that further system understanding with a strong view to applicability for operational or monitoring purposes); Computational oceanography (all aspects of ocean modeling and data analysis); Observational oceanography (new techniques or systematic approaches in measuring oceanic variables, including all aspects of monitoring the state of the ocean); Articles with an interdisciplinary character that encompass research in the fields of biological, chemical and physical oceanography are especially encouraged.
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