为了解决烧蚀移动边界问题，采用了在动坐标系上建立有限元素方程。
The finite element equation is formulated with moving coordinate system in order to solve a typical problem.
论文提出了一种新的干湿判断方法来处理潮流数值模拟中潮间带上的动边界问题。
A new wetting and drying method for the numerical tidal flow model is developed to deal with the moving boundary due to tidal waves at the tidal flat.
首先定义流体体积函数，然后将动边界问题的求解分为两个步骤，即将动边界的追踪与主场压力的求解交替进行。
After defining the function of volume of fluid, the resolve is divided into two steps, namely tracing the moving boundary and resolving pressure.
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