Abstract An experimental and numerical study on the hydrodynamic characteristics of arc-shaped plate-type (ASPT) breakwaters was carried out. The accuracy and reliability of the developed 2D numerical model were verified through experimental results, which show the following. As the relative plate width increases, a decrease in Kt and a slight increase in Kr occur. The maximum increase in the transmission coefficient is approximately 11% (the wave height increases by 4 cm). When d/h = 0.05, the difference in the reflection coefficient at H/h values of 0.10 and 0.17 is great, with the maximum amplitude decreasing to 39.6%. The wave pressure P distribution pattern differs significantly between the upper and lower surfaces of the arc-shaped plate. When d/h = 0.05, the difference in the absolute value between positive and negative P values ranges only from 0.06 to 0.21 kPa. The vertical wave force on the ASPT breakwater is significantly greater than the horizontal wave force. The flow field distribution differs notably between the wave-facing and back-wave sides of the ASPT breakwater. A relatively notable vortex is formed on the back-wave side. The results of this study can be used as a theoretical reference for the application of ASPT breakwaters in engineering.

中文翻译：

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长周期波浪作用下弧形板式防波堤水动力特性数值与试验研究

摘要 对弧形板式（ASPT）防波堤的水动力特性进行了实验和数值研究。通过实验结果验证了所开发的二维数值模型的准确性和可靠性，结果如下。随着相对板宽的增加，Kt 减小，Kr 略有增加。透射系数的最大增加约为 11%（波高增加 4 cm）。当 d/h = 0.05 时，H/h 值为 0.10 和 0.17 处的反射系数差异很大，最大振幅下降到 39.6%。弧形板上下表面的波压P分布模式明显不同。当 d/h = 0.05 时，正负 P 值的绝对值差异范围仅为 0.06 至 0.21 kPa。ASPT防波堤上的垂直波浪力明显大于水平波浪力。流场分布在 ASPT 防波堤的迎浪侧和背浪侧之间存在显着差异。在背波侧形成了一个比较显着的涡流。本研究结果可为ASPT防波堤在工程中的应用提供理论参考。