Table 5 Verification of grid independence.
From: Study of in situ stress inversion of deeply incised valleys considering the river evolution process
Mesh densities | Total number of elements | Relative error of principal stresses (%) | |||||||
|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | Maximum difference (compared with the fine meshes) | ||
coarse | 300,000 | 22.33 | 16.18 | 29.29 | 16.12 | 27.41 | 9.26 | 17.57 | 4.91 |
medium | 400,000 | 19.23 | 15.08 | 25.11 | 15.36 | 24.32 | 8.15 | 15.26 | 1.77 |
fine | 500,000 | 18.35 | 14.04 | 24.38 | 14.11 | 22.55 | 7.63 | 14.74 | — |
