波浪在潜堤和潜堤地形上的传播变形

Propagation deformation of waves over a submerged bar and terrain

为了分析波浪在近岸区域受到水下结构物或地形影响产生的传播变形,本文基于计算流体动力学开源程序OpenFOAM建立了数值波浪水槽,模拟了规则波在潜堤上和椭圆余弦波在潜堤地形上的传播变形,将选定位置处波面的数值结果分别与代尔夫特理工大学的试验数据、基于Boussinesq方程的数值结果相对比,所得的数值结果与已发表的结果均吻合较好。结果表明:使用OpenFOAM可以精确地模拟波浪在潜堤和潜堤地形上的传播变形,将为近岸结构物的相关研究及设计提供可靠依据。

In order to analyze the propagation and deformation of waves in coastal areas caused by the presence of submerged structures or terrain,numerical models of wave flumes are designed using the open-source package OpenFOAM for computational fluid dynamics.Wave surface elevations at specified locations are obtained from simulations of regular waves and cnoidal waves propagating over a submerged bar and terrain.The results are compared with experimental data from Delft University and numerical results based on the Boussinesq equation.Satisfactory agreements are found between the present results and the published results.The present research confirms that the numerical model of a wave flume based on OpenFOAM can accurately simulate wave propagation over a submerged bar and terrain.This will provide helpful guidelines for related research and practical designs of coastal structures.