基于渗流有限元理论和虚单元固定网格法，编制了堤内压盖渗流有限元程序。
A seepage finite element program was developed based on seepage FEM and imaginary elements fixed mesh method.
计算结果表明，用自适应网格求解比用固定网格求解捕捉的激波宽度较窄，质量较高。
The results show that the adaptive grid method can capture shock better than the fixed grid method.
在数值模拟中重点对移动和固定网格法等进行了研究，并应用固定网格法对无压渗流场自由面进行了搜索计算。
We will have focal point study for moving and fixing grid law etc., have the application to the free surface search of he impressure influent fields.
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