In order to gain the finite element calculation grids with high quality and wide applica- tion, the structured and unstructured grid fusion is made, and the tetrahedral grids are converted in- to the triangular grids in the interface to make the topology consistent and the grids be connected seamlessly through the grid topology conversion technology. The comparison between the simulation and test results indicates that fewer grids are generated with higher calculation precision and wider application through the method.%为了得到质量高、适用性强的有限元计算网格,将结构化网格与非结构化网格两种划分方法相融合,通过网格拓扑转化技术将交界面处的四面体网格转化成三角形网格来满足拓扑一致,实现网格无缝连接。通过算例与实验结果对比发现,该方法生成的网格数量少,计算精度高,适用范围广。
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