Floating breakwaters have better performance than fixed breakwaters in deep water conditions owing to their higher durability and lower cost. To evaluate the hydrodynamics of a floating breakwater system, a coupling model between smoothed particle hydrodynamics and a multisegmented quasi-Static method is developed. The free-floating and the moored cases are firstly employed as benchmarks to validate the accuracy and stability of the proposed numerical procedure. The coupling model is then utilized to investigate the wave-attenuating performance of a novel configuration of floating breakwater under different environmental conditions. It is demonstrated that the induced response and the tension characteristics are both in good agreement with experimental results, which means that the developed coupling model is capable of predicting the hydrodynamics of the floating breakwater system. Moreover, it is also suggested that the newly-proposed configuration shows more satisfactory wave-attenuating performance than the classical type by inducing more complex velocity fields surrounding the breakwater.

浮动式防波堤在深水条件下比固定式防波堤具有更高的耐用性和更低的成本。为了评估浮动防波堤系统的流体动力学，开发了平滑粒子流体动力学与多分段准静态方法之间的耦合模型。自由浮动和系泊案例首先被用作基准来验证所提出的数值程序的准确性和稳定性。然后利用耦合模型研究浮动防波堤在不同环境条件下的新型配置的波浪衰减性能。结果表明，诱导响应和张力特性均与实验结果吻合良好，这意味着开发的耦合模型能够预测浮动防波堤系统的水动力。此外，还建议新提出的配置通过在防波堤周围引入更复杂的速度场，显示出比经典类型更令人满意的波浪衰减性能。