【摘要】 简要介绍基于孔隙逾渗和裂隙逾渗叠加的双重逾渗模型,阐述模型的原理、算法及其实现过程.初步研究模型的分形特性,认为分形维数D是能够衡量模型连通性的重要参数.最后探讨模型的蒙特卡洛数值计算方法,兼顾计算精度与计算耗时,提出可操作的计算规模.更多还原

【Abstract】 An algorithm and implementation of a dual-percolation model based on bond-percolation theory was introduced which combines pore-network with fracture-network. Monte-Carlo numerical simulation was conducted based on statistical analysis of key parameters,i. e. fracture population densities,Fracture angles,fracture lengths,and pore connectivity possibilities. Fractal dimension was presented to quantify fractal connectivity. Numerical results were in agreement with those of Balberg and Berkowitz et al. Finally,appropriate sample scale was discussed considering both calculation precision and computing time.更多还原