The interaction between internal waves and submarine seamounts is three-dimensional (3D). In this work, we conduct laboratory experiments to investigate the role of the three-dimensional seamount on the reflection of internal waves. Experimental results show that the energy of internal waves is focused after the reflection and the phase of the internal wave front become curved. The energy of the focusing region was nearly 2 times as that of the scattering region. There is a strong internal wave induced mean flow whose strength is nearly as high as 50% of that of the reflected internal wave. The mean flow was generated by the variation of the velocity amplitude in both the x axis and y axis. These results indicate that the reflection from the 3D seamount could lead to a complex spatial distribution of the internal wave and a different energy conversion process.

中文翻译：

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海底海山反射内波的三维演化

内波和海底海山之间的相互作用是三维的（3D）。在这项工作中，我们进行了实验室实验，以研究三维海山对内波反射的作用。实验结果表明，内波能​​量在反射后集中，内波前相位弯曲。聚焦区的能量几乎是散射区能量的 2 倍。存在强烈的内波诱导平均流，其强度几乎高达反射内波强度的50%。平均流量是由 x 轴和 y 轴上速度幅度的变化产生的。