Development of a 3D numerical wind wave tank using an explicit method of water surface location

尝试开发一种三维数值风浪箱，用于计算气流、水流和风浪。从以往的研究结果来看，在水面上存在较大的速度梯度。本研究提出了两种显式的水面处理方法，但采用这两种方法的数值模型精度不够。通过可视化实验并与数值结果进行对比，发现气流在风波上的分离控制了风侧和水侧的动量传递。这表明气流分离对风浪发展机制的自我控制有很大影响。

Development of a 3D numerical wind wave tank was tried to compute air flow, water flow and wind waves. From previous results, it has been found that there is large gradient of velocity at water surface. In this study, two explicit methods to treat water surface were proposed, but the numerical model using the methods didn't have enough accuracy. From visualization experiments carried out to be compared with numerical results, it was found that air flow separation over wind waves controlled momentum transfer between air side and water side. This result suggests that air flow separation strongly affects self control of development mechanism of wind waves.