直立堤上任意方向入射波的波压力研究

为了研究在不同入射波向时直立堤上的波压力，基于FLOW-3D，该文建立了三维数值波浪水池，并进行了物理模型试验。模型采用推板造波及孔隙消波的方法形成稳定的波浪场，数值模拟结果与试验结果吻合较好。研究表明:墙面测点的波压力与波吸力均随入射角度的增大而增大；墙底各测点浮托力的变化规律较为复杂，合田公式不能准确描述；墙面波压力的分布与合田公式基本相符；墙底浮托力的分布并不是合田公式描述的三角形，而是近似梯形分布；斜向波作用下的墙面波吸力分布图相似于正向入射时的分布。研究结论可为防波堤设计提供参考依据。

A STUDY ON ARBITRARY INCIDENT WAVE PRESSURE ON VERTICAL BREAKWATERS

In order to study the wave pressure acting on the vertical breakwater with various incident wave directions, a 3-D numerical wave pool is established based on FLOW-3D software, and a corresponding physical model test is carried out for the validation of the numerical model. The numerical model uses apiston-type plate to generate waves and a pore structure to absorb waves. The results of numerical simulation agree well with the experimental results. The comparison analysis shows that both wave pressure and wave suction of measuring points on the wall increase with the incident angle increasing. At the bottom of the wall, the change trend of the uplifting pressure is more complex, which is no longer applicable described by the Goda's formula. The distribution of wave pressure on the wall is basically consistent with the Goda's formula. And the distribution shape of the uplifting pressure at the bottom of the wall is similar to a trapezoid rather than a triangle described by the Goda's formula. The negative wave pressure distribution under oblique waves is similar to that at forward incidence on the wall. The results can provide a reference for the breakwater design in costal engineering.