This study investigates the three-dimensional (3-D) solitary wave interaction with two cylinders in tandem and side-by-side arrangements for two wave heights. The solitary wave generation and propagation are predicted using the volume of fluid method (VOF) coupled with the NavierStokes transport equations. The PHOENICS code is used to solve these transport equations. The solitary wave generation based on the source line developed by Hafsia et al. (2009) is extended in three-dimensional wave flow and is firstly validated for solitary waves propagating on a flat bottom. The comparison between numerical results and analytical solution for small wave height and 0.2 shows good agreements. The wave crest and the pseudo-wavelength are well reproduced. Excellent agreements were found in terms of maximum run-up and wave forces by comparison with the present model and analytical studies. The present model can be tested for the extreme solitary wave to extend its application to a more realistic case study as the solitary wave diffraction with an offshore oil platform.

中文翻译：

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具有一个和两个垂直圆柱的孤波衍射

本研究研究了两个圆柱体在两个波高下串联和并排排列的三维（3-D）孤立波相互作用。孤波的产生和传播是使用流体体积法（VOF）结合NavierStokes输运方程来预测的。PHOENICS代码用于求解这些输运方程。基于Hafsia等人开发的源线的孤波生成。（2009年）扩展了三维波流，并首先验证了在平坦底部传播的孤立波。小波高的数值结果与解析解的比较0.2表示良好的一致性。波峰和伪波长被很好地再现。与目前的模型和分析研究相比，在最大上升和波浪力方面达成了极好的协议。可以对本模型进行极端孤波测试，以将其应用扩展到更现实的案例研究中，例如使用海上石油平台进行孤波衍射。