Abstract A laboratory and numerical investigation on the features of the horizontal and vertical hydrodynamic loads given by a solitary wave on a submerged square barrier is presented. By the experimental viewpoint, the wave forces were deduced from the records of a discrete battery of pressure sensors located along the external surface of the barrier. As regards the numerical viewpoint, simulations were performed through the SPH model presented in Di Mascio et al. (2017), in which the governing equations are written considering a turbulence closure model. The numerical simulations allowed to extend the range of analyzed cases and highlighted the regions around the submerged barrier of higher dissipation occurring during the wave-structure interaction. A good agreement between the experimental and numerical peaks of the horizontal and vertical forces was found. Afterwards, a semi-analytical scheme able to determine the horizontal loads was adopted using the speed drop factor obtained by physical tests and simulations. For practical purposes, attention was finally paid to determine the critical conditions against the sliding of the barrier.

中文翻译：

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由孤立波与淹没的方形屏障相互作用引起的水动力：物理测试和 δ-LES-SPH 模拟

摘要 介绍了由孤立波在水下方形屏障上给出的水平和垂直水动力载荷特征的实验室和数值研究。根据实验的观点，波浪力是从位于屏障外表面的一组离散压力传感器的记录中推导出来的。至于数值观点，模拟是通过 Di Mascio 等人提出的 SPH 模型进行的。(2017)，其中控制方程是在考虑湍流闭合模型的情况下编写的。数值模拟允许扩展分析案例的范围，并突出显示波浪-结构相互作用期间发生的更高耗散的淹没屏障周围的区域。发现水平力和垂直力的实验峰值和数值峰值之间有很好的一致性。之后，采用通过物理测试和模拟获得的速度下降系数来确定水平载荷的半解析方案。出于实际目的，最终注意确定阻止障碍滑动的临界条件。