孤立波与多排水平板相互作用的数值研究

Numerical study on the interaction between solitary wave and multiple rows of horizontal plates

利用FLUENT进行二维波浪水槽数值模拟,对孤立波作用下多排水平板的水动力特性开展研究。首先通过与试验结果的对比,验证数值模型在处理孤立波与水平板相互作用问题上的准确性;然后分析相对波高、板宽、相对板间隙和相对潜深等参数对多排水平板消浪性能的影响,通过分析流场和涡量场,讨论多排水平板结构的消波机理。研究结果表明:当相对板间隙j/B在0.02~0.10范围内时,多排水平板的消浪效果最好,优于单排水平板;多排水平板为水体交换提供了空间,并降低了结构受力,在减少施工用料的同时还具有良好的消浪能力。

Using FLUENT,a two-dimensional numerical wave flume simulation was conducted to study the hydrodynamic characteristics of multiple rows of horizontal plates under the action of a solitary wave.First,the accuracy of the numerical model in handling the interaction between the solitary wave and horizontal plates was verified by comparing with experimental results.Then,the effects of parameters such as relative wave height,plate width,relative plate spacing,and relative submergence depth on the wave dissipation performance of multiple rows of horizontal plates were analyzed.The wave dissipation mechanism of the multiple rows of horizontal plates structure was discussed by analyzing the flow field and vorticity field.The study shows that when the relative plate spacing j/B is in the range of 0.02 to 0.10,the wave dissipation effect of multiple rows of horizontal plates is the best,and it is better than that of a single row of horizontal plates.The multiple rows of horizontal plates provide space for water exchange and reduce the structural load,and they have good wave dissipation ability while reducing the construction materials.