发表机构
Laboratoire de Physique et Mécanique des Milieux Hétérogènes (PMMH), CNRS UMR 7636; IFP Énergies Nouvelles; Saint-Gobain Research Paris（异质介质物理与力学实验室（PMMH），法国国家科学研究中心; 法国石油研究院新能源部门; 圣戈班巴黎研究所）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文通过波浪水槽实验研究了 submerged 弹性板的波-板相互作用，发现其可反射、衰减波浪并产生射流，特定频率下射流向上，对波能转换及防止海床侵蚀有重要价值。
AI 中文摘要
本文报道了在波浪水槽中水平 submerged 弹性板的实验研究。该板的上游端固定在某一深度，下游端可自由移动。采用合成纹影技术测量波场，可估算入射波能在遇到板 submerged 区域后透射和反射的能量占比。结果显示，部分入射波能被板耗散。在平行于波传播方向的竖直平面内进行流场测量，以研究波-板相互作用：板的自由端产生类似射流的流动，伴随类似拍动鳍产生的强涡旋活动；通过速度场测量计算该射流流动的动能，并估算射流产生带来的外部耗散。研究结果凸显了弹性板在反射和衰减波浪方面的效率，还揭示了射流方向的变化，特别是在特定频率下观测到射流向自由表面向上流动的现象。这种结构对波能转换应用具有重要意义，同时可防止海床侵蚀等有害现象。
英文摘要
Experiments on a flexible plate horizontally submerged in a wave tank are reported in this paper. The plate is held at a fixed depth at its upstream end, while its downstream end is free to move. The wave field is measured using a synthetic Schlieren technique, giving access to an estimate of the fractions of the incoming wave energy that are transmitted and reflected after encountering the region where the plate is submerged. Part of the incoming wave energy is shown to be dissipated by the plate. Flow field measurements in a vertical plane parallel to the wave propagation are performed to examine the wave-plate interaction. A jet-like flow is produced at the free end of the plate, with strong vortex activity similar to that produced by a flapping fin. The kinetic energy present in this jet-like flow is computed from the velocity field measurements, and the external dissipation produced by jet creation is estimated. Results highlight the efficiency of flexible plates in reflecting and attenuating waves. This study also showcases a change in jet direction, in particular the observation of a jet going upward toward the free surface for certain frequencies. Such a configuration, could be of great interest for wave energy conversion applications, while preventing harmful phenomena such as seabed erosion.
