An efficient algorithm for generation of conforming mesh for three-dimensional discrete fracture networks
ISSN: 0264-4401
Article publication date: 16 November 2018
Issue publication date: 27 November 2018
Abstract
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.
Keywords
Acknowledgements
The author (GW) acknowledges support from Theme-based Research Scheme Grant No. T22-603-15N from the Hong Kong Research Grants Council.
Conflicts of Interest:The authors declare that they have no conflicts of interest.
Citation
Mohajerani, S., Huang, D., Wang, G., Jalali, S.-M.E. and Torabi, S.R. (2018), "An efficient algorithm for generation of conforming mesh for three-dimensional discrete fracture networks", Engineering Computations, Vol. 35 No. 8, pp. 2860-2882. https://doi.org/10.1108/EC-03-2018-0127
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited