本模型采用破开算子法求解控制方程：用欧拉-拉格朗日法求解水平对流项；
The operator-splitting scheme is used to solve the governing equations: using the Eulerian-Lagrangian method for solving the horizontal advection terms;
通过欧拉-拉格朗日法，将油膜中心的轨迹和各个时刻的油膜分布情况可视化。
Using the Euler-Lagrange method, the track of centre of the oil slick and the temporal dispersion scope visualized.
在水流分析计算中，通常采用二种方法：一种是欧拉法；一种是拉格朗日法。
Generally, there are two methods in water current analysis and calculation, one is the Euler method, and the other is the Lagrange method.
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