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针对TOUGH2模拟器网格数据较难生成的特点,在总结分析已有的网格生成工具的优缺点基础上,介绍了基于多边形的网格生成方法。该方法先将研究区离散为多个三角形网格,再将其转化为多边形网格。基于水文地质参数分区和地理信息系统软件,可生成各结点的水文地质参数分区信息,再利用统计软件将已知点的高程和厚度信息扩展到模拟层的结点,最终可生成TOUGH2模拟器需要的网格输入文件。以北京市平原区网格生成说明了方法的合理性。这些成果为TOUGH2模拟器的推广应用提供了参考,并将提高TOUGH2的使用效率。
Aiming at the characteristics that TOUGH2 simulator grid data is hard to generate, this paper introduced the method of grid generation based on polygons based on the analysis of the advantages and disadvantages of existing grid generation tools. In this method, the study area is divided into a plurality of triangular meshes, which are then transformed into polygon meshes. Based on the hydrogeological parameter zoning and geographic information system software, the hydrogeological parameter zoning information of each node can be generated, and then the information of the elevation and the thickness of the known point can be extended to the nodes of the simulation layer by using the statistical software to finally generate the TOUGH2 simulator Required grid input file. The plains area of Beijing plains shows the rationality of the method. These results provide a reference for the popularization and application of TOUGH2 simulator, and will improve the efficiency of TOUGH2.