为了研究波浪对结构物的作用，采用模拟波浪和结构物相互作用的方法理论建立数学模型。基于N⁃S方程，采用VOF方法追踪自由表面，通过UDF方法将入射波作为人工的分布源项加入动量方程，建立兼有造波和消波功能的二维数值波浪水槽。在此基础上，对规则波在涵洞式直立堤上的越浪、透浪过程进行了数值模拟，并与物理模型试验结果进行比较。结果表明：数值模拟能够较好地模拟透浪以及越浪过程，同时可以较准确地得到透浪系数。%To study the effects which waves have on structures, the theory that the interaction between wave and structure was used to build a mathematical model. Based on the N⁃S equation, the VOF method was used to track the free surface. A 2D numerical wave flume which can both generate and absorb waves was developed through modifying the source terms of momentum equations by distributed sources associated with the incoming waves in this study. Then,for regular waves, transmission and overtopping over a vertical breakwater with culvert were simulated. Compared with the experimental result, good agreements were obtained. Meanwhile, the wave trans⁃mission coefficient was accurately presented.
展开▼
