A series of numerical simulations of wave run-up on four-cylinder array is performed at different spacing ratios 1.5 ≤ L/D ≤ 4.25, where L is the center-to-center distance between the adjacent cylinders and D is the cylinder diameter. The effects of spacing ratio and wave steepness on the wave run up ratio and wave force on the four cylinders are investigated. The results show that with variation of the spacing ratios and incident wave angles, different wave pattern regimes are observed among four cylinders. It is interesting to note that the maximum run-up ratio occurs at L/D = 2.0 with the large wave steepness H/λ=1/16, and approaches to 2.4 times of that for the single cylinder in the case of incident wave angle β = 45°. The spacing ratio has a significant effect on the horizontal wave forces for the four cylinders, however, the location of the maximum wave force is found to be not significantly related to that of the maximum run-up ratio.

在不同间距比1.5≤L / D≤4.25的情况下，对四缸阵列上的波上升进行一系列数值模拟，其中L为相邻圆柱之间的中心距，D为圆柱直径。研究了间距比和波陡度对四个圆柱体的波浪上升比和波浪力的影响。结果表明，随着间距比和入射波角的变化，在四个圆柱体之间观察到不同的波型模式。有趣的是，最大上升比出现在L / D  = 2.0时，且波陡度H / λ=1/16，并且在入射波角β  = 45°的情况下接近单缸的2.4倍。间隔比对四个气缸的水平波浪力有显着影响，但是，发现最大波浪力的位置与最大加速比的位置并不显着相关。