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本文根据潮波总能量可用许多已知天文潮频能量的总和来表示以及由线性化的浅水方程,推导出能谱的控制方程。使用三节点三角形的有限元法求解控制方程。进而求得各分潮的流速分量,最后线性叠加求得全计算域的水位和流速.实例证明,本模式解题非常有效并取得了良好的成果,与连云港物理模型试验及 ADI 法计算的成果比较,其结果是一致的。
According to the total energy of the tide wave, we can use the sum of many known astronomical tidal energy and the governing equation of the energy spectrum derived from the linearized shallow water equation. The governing equations are solved using the finite element method of the three-node triangle. Then the velocity component of each tide is calculated and the water level and velocity of the whole calculation domain are obtained by linear superposition.The examples show that the solution of this mode is very effective and has achieved good results.Compared with the results of Lianyungang physical model test and ADI method The result is the same.