This analytical study presents the solitary wave interaction with a bottom-mounted surface-piercing V-shaped breakwater. The breakwater is impermeable, thin, and rigidly fixed on the bottom. As a key element, an imaginary closed cylinder with an arm’s length radius was introduced so that the fluid domain was divided into three subdomains by an imaginary interface, within which the solutions were described by eigenfunctions. Furthermore, by satisfying the boundary and matching conditions in the subdomains, the velocity potential at any point in the fluid domain could be determined. The numerical results obtained for the limiting cases were verified by a comparison with previous predictions for a straight breakwater. The effects of the wave incident angle, opening angle of the breakwater, and wave-effect parameter on wave loads and wave run-up were studied. Furthermore, comparison and analysis of the hydrodynamic performance of the V-shaped and arc-shaped breakwaters with a similar structure showed that they had a similar wave attenuation effect. However, the V-shaped breakwater was subject to smaller wave loads. Moreover, for solitary wave diffraction caused by the breakwater, the Airy wave model might significantly underestimate wave run-up.

这项分析研究提出了与底部安装的穿墙V形防波堤的孤立波相互作用。防波堤是不透水的，薄的并且牢固地固定在底部。作为关键要素，引入了具有臂长半径的假想封闭圆柱体，以便通过假想界面将流体域划分为三个子域，在其中用本征函数描述解。此外，通过满足子域中的边界和匹配条件，可以确定流体域中任意点的速度势。通过与以前的直防波堤的预测进行比较，验证了在极限情况下获得的数值结果。波浪入射角，防波堤张开角，研究了波浪效应参数对波浪载荷和波浪上升的影响。此外，对结构相似的V型和弧形防波堤的水动力性能进行比较和分析表明，它们具有相似的波浪衰减作用。但是，V形防波堤的波浪载荷较小。此外，对于由防波堤引起的孤立波衍射，艾里波模型可能会大大低估波的上升。