Research Article
A Quasi-3D Numerical Model for Grout Injection in a Parallel Fracture Based on Finite Volume Method
Table 4
Average flow velocity at different radiuses at t = 20 s in Case 1.
| Radius r (m) | Average flow velocity u | Analytical (cm/s) | Quasi-3D model (cm/s) | Fluent_2l (cm/s) | Fluent_6l (cm/s) | Relative errors (%) | Quasi-3D model | Fluent_2l | Fluent_6l |
| 0.025 | 12.0000 | 11.9976 | 8.0095 | 11.4062 | 0.02 | 33.25 | 4.95 | 0.050 | 6.0000 | 6.1148 | 3.9987 | 5.6874 | 1.91 | 33.36 | 5.21 | 0.075 | 4.0000 | 4.0639 | 2.6656 | 3.7897 | 1.6 | 33.36 | 5.26 | 0.100 | 3.0000 | 3.0323 | 1.9997 | 2.8418 | 1.08 | 33.36 | 5.27 | 0.125 | 2.4000 | 2.4126 | 1.5993 | 2.2731 | 0.52 | 33.36 | 5.29 | 0.150 | 2.0000 | 2.0105 | 1.3328 | 1.8940 | 0.52 | 33.36 | 5.30 | 0.175 | 1.7143 | 1.7205 | 1.1424 | 1.6230 | 0.36 | 33.36 | 5.33 | 0.200 | 1.5000 | 1.5061 | 0.9996 | 1.4196 | 0.41 | 33.36 | 5.36 | 0.225 | 1.3333 | 1.3377 | 0.8885 | 1.2613 | 0.33 | 33.36 | 5.40 | 0.250 | 1.2000 | 1.2035 | 0.7996 | 1.1344 | 0.29 | 33.37 | 5.47 | 0.275 | 1.0909 | 1.0893 | 0.7269 | 1.0303 | 0.15 | 33.37 | 5.56 | 0.300 | 1.0000 | 0.9813 | 0.6663 | 0.9437 | 1.87 | 33.37 | 5.63 |
| Average relative errors (%) | 0.76 | 33.35 | 5.34 |
|
|