Abstract This paper presents an alternative experimental study of the interaction of broken flows with a fixed structure, concerning the overtopping features and vertical loads over its deck. Wet dam-break tests were carried out to generate incoming flows. Synchronized measurements provided by high-speed cameras, water elevation and force sensors, were used to investigate the influence of tank length in overtopping behaviour and the patterns and loads formed by wet dam-break flows generated by different conditions. During some of the overtopping events analysed, large scale plunging waves were observed, hitting the deck directly and forming large air cavities. These events generated violent interactions with the structure, causing significant loads and chaotic behaviour over the deck, due to the combination of air cavity collapse, reactive splash and run-down. The present approach could be employed as an alternative to study interactions of broken incident flows with different types of fixed structures, allowing the acquisition of detailed data to compare analytical or numerical models.

中文翻译：

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剧烈的水-结构相互作用：由于中断的入射流，固定结构上的溢流特征和垂直载荷

摘要 本文提出了一种关于断流与固定结构相互作用的替代实验研究，涉及其甲板上的越顶特征和垂直载荷。进行了湿坝破坏试验以产生流入的水流。高速摄像机、水位高度和力传感器提供的同步测量被用来研究水箱长度对漫顶行为的影响以及不同条件下湿坝溃坝流形成的模式和载荷。在分析的一些越过事件中，观察到大规模的倾波，直接撞击甲板并形成大的气穴。这些事件与结构产生了剧烈的相互作用，由于气腔坍塌、反应性飞溅和磨损。本方法可用作研究破碎的入射流与不同类型的固定结构的相互作用的替代方法，允许获取详细数据以比较分析或数值模型。