In the present study, scattering of surface gravity waves by multiple slotted vertical barriers arranged in a zig-zag manner is analyzed by employing Computational Fluid Dynamics (CFD) and validated with physical model tests. The porosity of the vertical slotted barrier is varied from 10% to 40%, and the number of slotted barriers varied from 1 to 6. The results from CFD correlate well with the laboratory measurements on the scattering coefficients for a wide range of input conditions giving a high level of confidence. For relatively short waves ($h/\lambda$ > 0.3, $h$- water depth and $\lambda$- wave length), slotted barriers up to 3 numbers and porosity from 20% to 30% are required to achieve wave transmission coefficient in the range of 0.2 to 0.3. For relatively long waves ($h/\lambda$ < 0.3), slotted barriers of 5 to 6 numbers and porosity in the range of 10% to 20% are needed to obtain wave transmission of 0.2 to 0.3. The results presented in this study can be used for a wide range of wave damping applications in the field of coastal engineering.

在本研究中，采用计算流体动力学（CFD）分析了以锯齿形方式排列的多个开槽垂直屏障对地表重力波的散射，并通过物理模型试验进行了验证。垂直开槽屏障的孔隙率从 10% 到 40% 不等，开槽屏障的数量从 1 到 6 不等。CFD 的结果与实验室测量的各种输入条件下的散射系数具有很好的相关性高度的信心。对于相对较短的波（$H/\lambda$ > 0.3,$H$- 水深和$\lambda$- 波长），需要多达 3 个数量的开槽屏障和 20% 到 30% 的孔隙率才能实现 0.2 到 0.3 范围内的波传输系数。对于相对较长的波（$H/\lambda$ < 0.3)，需要 5 到 6 个数量的开槽屏障和 10% 到 20% 的孔隙率才能获得 0.2 到 0.3 的波传输。本研究中提出的结果可用于海岸工程领域的各种波浪阻尼应用。