Research Article

Mesoscopic Freeze-Thaw Damage Evolution Characteristics of Fractured Sandstone at Different Saturations

Figure 8

The workflow of extracting the pore network model. (a) Original volume. (b) The subvolume. (c) The binary subvolume. (d) The entire PNM, including nodes and links. (e) The nodes of the PNM. (f) Links in the PNM.