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4．等价的多孔介质性质裂隙网络中溶质机械弥散研究的基本问题之一,是要确定一个把给定的裂隙系统处理为一个等价的均质的多孔介质连续体的方法。在多孔介质中,达西定律通过处理多孔介质为等价的连续体介质而使得计算介质中的宏观流量成为可能。等价多孔介质的流体运动特点可以用两种方式来分析。首先根据图12上的边界条件所构成的流场为等价的多孔介质性质进行单独的计算。然后,方向流动由在不同方向上的综合流动结果来分析。在多孔介质中,各向异性的特点可以根据唯一的渗透系数向量来计算。
4. One of the fundamental issues in the study of solute mechanical dispersion in fracture networks is to determine a method of treating a given fracture system as an equivalent homogeneous porous continuum. In porous media, Darcy’s law makes it possible to calculate the macroscopic flow in a medium by treating the porous medium as an equivalent continuum medium. The fluid motion characteristics of an equivalent porous medium can be analyzed in two ways. First, a separate calculation is made based on the flow field composed of the boundary conditions on FIG. 12 as an equivalent porous medium. Then, the direction flow is analyzed by the results of the integrated flow in different directions. In porous media, the anisotropic characteristics can be calculated from the unique permeability coefficient vector.