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首次为整个东中国海设计出一种自适应网格 ,利用自适应网格能同时兼顾网格的光滑性、正交性及疏密程度的特点 ,得到了物理平面上的网格分布。该网格既与边界适应 ,又在水深变化急剧的东海陆坡处得以加密 ,从而使坐标变换下的三维模式成功实现了跨越陆坡的计算。用该模式模拟了海域的潮汐变化。依据所得结果绘制出 M2 分潮的同潮图和潮流椭圆。模拟结果与现有的数值研究结果基本一致 ,表明此模式在该海域的适用性
For the first time, an adaptive grid is designed for the entire East China Sea. The adaptive mesh can take into account the smoothness, orthogonality and density of the grid at the same time. The grid distribution on the physical plane is obtained. The grid is not only adaptive to the boundary but also encrypted at the East China Sea slope where the water depth changes drastically. As a result, the three-dimensional model under the coordinate transformation successfully achieves the calculation across the slope. This model simulates the tidal changes in the sea. Based on the results obtained, the tide diagram and trend ellipse of M2 tide are drawn. The simulation results are basically consistent with the existing numerical results, indicating the applicability of this model in this area