鼎形浮式防波堤消浪性能研究*

为进一步提高矩形浮式防波堤消浪性能，设计一种鼎形浮式防波堤，基于STAR-CCM+软件建立二维数值模型，分析3种潮位下吃水深度、弧墙高度和弧墙角度对该结构消浪性能的影响。研究结果表明：与矩形方箱浮式防波堤相比，鼎形浮式防波堤可有效提升消浪性能；该结构透射系数随着吃水深度、弧墙高度和弧墙角度的增加而减小；反射系数随着吃水深度和弧墙高度的增加而增大，弧墙角度对浮堤的反射系数影响不明显；透射系数随着相对宽度的增加总体呈下降趋势，反射系数随着相对宽度的增加总体呈上升趋势。在研究的波浪要素条件下，当结构参数设置为吃水深度0.2 m、弧墙高度0.05 m、弧墙角度54°时，透射系数、反射系数分别达到0.11、0.61，此时为最优参数设置，浮堤的消浪性能最好。

Wave dissipation performance of tripod-shaped floating breakwater

To further improve the wave dissipation performance of rectangular floating breakwater，a tripod-shaped floating breakwater is designed.A two-dimensional numerical model is established based on STAR-CCM+ software to analyze the influence of draught depth，arc wall height and arc wall angle on the wave dissipation performance of the structure.The results show that compared with the rectangular box floating breakwater，the tripod-shaped floating breakwater can effectively improve the wave dissipation performance，and the transmission coefficient decreases with the increase of draught depth，arc wall height and arc wall angle.The reflection coefficient increases with the increase of the draught depth and the height of the arc wall，while the influence of the arc wall angle on the reflection coefficient is not obvious，the reflection coefficient increases with the increase of relative width.Under the conditions of wave elements studied，when the structural parameters are set to draught depth 0.2 m，arc wall height 0.05 m and arc wall angle 54 °，the transmission coefficient and reflection coefficient reach 0.11 and 0.61 respectively，in this case，the optimal parameters are set，and the wave dissipation performance of floating breakwater is the best