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An efficient algorithm for generation of conforming mesh for three-dimensional discrete fracture networks

机译：三维离散裂缝网络中生成合格网格的有效算法

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摘要

Purpose - This study aims to develop an efficient algorithm for generation of conforming mesh for seepage analysis through 3D discrete fracture networks (DFN).Design/methodology/approach - The algorithm is developed based on a refined conforming Delaunay triangulation scheme, which is then validated using analytical solutions. The algorithm is well able to meet the challenge of meshing complex geometry of DFNs.Findings - A series of sensitivity analysis have been performed to evaluate the effect of meshing parameters on steady state solution of Darcy flow using a finite element scheme. The results show that an optimized minimum internal angle of meshing elements should be predetermined to guarantee termination of the algorithm.Originality/value - The developed algorithm is computationally efficient, fast and is of low cost. Furthermore, it never changes the geometrical structure and connectivity pattern of the DFN.
机译：目的-本研究旨在开发一种通过3D离散裂缝网络（DFN）生成用于渗流分析的合格网格的有效算法。设计/方法/方法-该算法是基于改进的合格Delaunay三角剖分方案开发的，然后进行了验证使用分析解决方案。研究结果-已经进行了一系列敏感性分析，以有限元方案评估网格参数对达西流稳态解的影响。结果表明，应预先确定网格单元的最小内角，以保证算法的终止。原始性/取值-该算法计算效率高，速度快，成本低。此外，它永远不会改变DFN的几何结构和连接模式。

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