多体浮式防波堤消波特性数值模拟

多体浮式防波堤消波特性是决定其应用价值的重要因素,基于三维势流理论,通过使用Ansys Workbench软件和AQWA Graphical Supervisor(AGS)图像后处理软件,对多体浮式防波堤在不同入射角和浮筒吃水深度下的消波效果展开研究。结果表明,在入射角度为90°时,多浮筒浮式防波堤能够最大程度地消减波浪。同时,透射系数随吃水深度的增加而不断减小,但结构稳定性会下降。因此,实际工程中应尽量保证浮式防波堤的迎浪面与波浪的来波方向垂直,这样可以获得较好的消波效果,同时应尽量避免选择吃水深度过大的浮式防波堤。

Numerical simulation on the wave attenuation performance of multi-body floating breakwater

The wave attenuation performance of multi-body floating breakwater is an important factor to determine its application value.Based on the three-dimensional diffraction theory,using the software of Ansys Workbench and AQWA Graphical Supervisor (AGS),the effectiveness of wave attenuation of the rectangular multi-body floating breakwater with different wave heading angle and draught of pontoon is studied.It is found that multi-body floating breakwater can reach the lowest transmission coefficient at 90 degree heading angle.Increasing the draught can decrease the transmission coefficient of multi-body floating breakwater,but declines the stability of structures.Therefore,we try to ensure that the floating breakwater head sea surface is perpendicular to wave direction,so that it can get a better wave effect.At the same time,we try to avoid to choose the large draught floating breakwater.