海山对水动力场影响的数值实验

采用普林斯顿海洋模式对海峡中过海山的流场变化进行模拟。通过数值分析不同条件下海山周围的流场分布变化特征,并讨论了其相应的形成机制。在无海山存在的平底海峡中,无论是否考虑科氏力,海流流向均不发生偏转,但水位分布有明显差异。海山存在的情况下,若考虑科氏力效应,则会形成环绕海山的顺时针环流,并在海山周围有泰勒柱形成。当入流速度不同时,流场特征发生明显变化,流速越小,泰勒柱越明显,在合适入流条件下,在海山后方的尾流区会有涡生成。

Numerical Study on the Variations of the Hydrodynamic Field Around a Seamount

The variations of the hydrodynamic field around a seamount were simulated with POM.Based on the numerical experiments,the variations of velocity and water elevation in a narrow channel were discussed.If the channel is flat,whether coriolis force is considered,the flow always flow from west to east,but the distribution of water elevation is different.If a seamount exists in the channel and coriolis force is considered,an anticyclonic eddy form around the seamount.At the same time,Taylor column can be found a...