自适应网格应用于黄海潮流模拟

the Application of Self-Adaptive Mesh in the Yellow Sea —3 D Tropical Model

首次将自适应网格运用在黄海，根据黄海的特点首先设计了象平面的网格分布图，并利用自适应网格能同时兼顾网格的光滑性、正交性以及疏密程度的特点得到了物理平面中的网格分布图，并运用坐标变换下的三维模式模拟研究了黄海的潮汐变化。分别给出Ｋ１，Ｏ１，Ｓ２，Ｍ２ 四大分潮的同潮时线和等振幅线，并且也计算得出它们的深度平均的潮流椭圆分布图和它们各自的底层、５０ｍ 层、３０ｍ 层、２０ｍ 层、１０ｍ 层、表层的潮流椭圆分布图。可以看出模拟结果基本上与前人结果相一致，表明此模式在黄海的适用性。

We make use of self adaptive mesh in the Yellow Sea for the first time. We design the calculated area in the Yellow Sea. Then we get the real plane by way of self-adaptive zoning. We simulated the tidal current in the Yellow Sea with a 3-D model. We calculate the distribution of Co amplitude and Co phase lag lines of K 1, O 1,S 2 and M 2 constituents and their elliptical axis of tidal current for each layer and average depth. The results are similar with other authors, which can show the applicability of the model in the Yellow Sea.