多孔介质
磁导率
机械
离散化
渗透(认知心理学)
压缩性
渗流阈值
断裂(地质)
流量(数学)
基质(化学分析)
多孔性
有限体积法
材料科学
岩土工程
几何学
数学
地质学
数学分析
物理
复合材料
膜
量子力学
神经科学
生物
电阻率和电导率
遗传学
作者
I. Bogdanov,V. V. Mourzenko,Jean‐François Thovert,P. M. Adler
摘要
Flow in fractured porous media was first investigated by Barenblatt and Zheltov [1960] and Barenblatt et al. [1960] by means of the double‐porosity model. A direct, exact, and complete numerical solution of the flow in such media is given in this paper for arbitrary distributions of permeabilities in the porous matrix and in the fracture network. The fracture network and the porous matrix are automatically meshed; the flow equations are discretized by means of the finite volume method. This code has been so far applied to incompressible fluids and to statistically homogeneous media which are schematized as spatially periodic media. Some results pertaining to random networks of polygonal fractures are presented and discussed; they show the importance of the percolation threshold of the fracture network and possibly of the porous matrix. Moreover, the influence of the fracture shape can be taken into account by means of the excluded volume.
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