Research Article
Simulation Analysis on Water’s Micro Seepage Laws under Different Pressure Gradients Using Computed Tomography Method
Table 2
Calculated results of coal rock porosity using different points (P1, P2, P3, and P4) as the voxel centers.
| | Size of the volume element (μm) | 30 | 40 | 50 | 55 | 60 | 65 | 70 | 80 | 90 |
| | Calculated porosity using P1 as the voxel center (%) | 34.56 | 30.95 | 28.18 | 26.43 | 26.32 | 26.24 | 26.31 | 26.07 | 26.30 | | Calculated porosity using P2 as the voxel center (%) | 32.40 | 30.76 | 29.72 | 28.75 | 28.77 | 28.80 | 28.74 | 28.73 | 28.81 | | Calculated porosity using P3 as the voxel center (%) | 35.74 | 33.19 | 32.01 | 30.27 | 30.10 | 30.13 | 30.09 | 30.15 | 30.20 | | Calculated porosity using P4 as the voxel center (%) | 37.43 | 36.91 | 35.28 | 34.53 | 34.57 | 34.49 | 34.53 | 34.52 | 34.50 |
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