By using the open source DualSPHysics, the interaction between wave and a triple-cylinder bundle structure is numerically investigated. The wave is generated by applying the predefined function to the wave maker, and the free surface and the velocity of the regular wave and irregular wave are compared with the theoretical data at the measuring point. To verify the feasibility of the numerical method for simulating the fluid-structure interaction, the numerical results of smooth particle hydrodynamics (SPH) model are compared with the experimental and theoretical data, which shows a good agreement. Finally, 95 groups of cases of the interaction between wave and triple-cylinder bundles (TPB) are calculated, and the wave force acting on TPB is explored at different rotation angles. The effects of different wave parameters on the wave force characteristics are further analyzed. The results of a single vertical cylinder are introduced for making a comparison. For the regular wave case, the wave force acting on the structure is higher than that of the irregular wave case. When the rotation angle is 90°, the wave force on the TPB is the maximum; and it reaches the minimum at 180°.

通过使用开源的DualSPHysics，数值研究了波与三缸束结构之间的相互作用。通过将预定义函数应用于造波器来生成波，然后将自由表面以及规则波和不规则波的速度与测量点处的理论数据进行比较。为了验证数值模拟方法模拟流固耦合的可行性，将光滑颗粒流体动力学（SPH）模型的数值结果与实验和理论数据进行了比较，两者具有很好的一致性。最后，计算了95组波浪与三缸束（TPB）相互作用的情况，并探讨了在不同旋转角度作用于TPB的波浪力。进一步分析了不同波浪参数对波浪力特性的影响。引入单个垂直圆柱的结果进行比较。对于规则波情况，作用在结构上的波浪力要大于不规则波情况。当旋转角度为90°时，作用在TPB上的力最大。并在180°达到最小值。