Research Article
A Quasi-3D Numerical Model for Grout Injection in a Parallel Fracture Based on Finite Volume Method
Table 1
Variations of the diffusion radius with time calculated by three models in Case 1.
| Time t (s) | Diffusion radius r | Analytical (m) | Quasi-3D model (m) | Fluent_21 (m) | Fluent_6l (m) | Relative errors (%) | Quasi-3D model | Fluent_2l | Fluent_6l |
| 5 | 0.1732 | 0.1718 | 0.1760 | 0.1740 | 0.81 | 1.62 | 0.46 | 10 | 0.2449 | 0.2431 | 0.2450 | 0.2460 | 0.73 | 0.04 | 0.45 | 15 | 0.3000 | 0.2981 | 0.3010 | 0.3020 | 0.63 | 0.33 | 0.67 | 20 | 0.3464 | 0.3444 | 0.3460 | 0.3480 | 0.58 | 0.12 | 0.46 | 25 | 0.3873 | 0.3862 | 0.3880 | 0.3890 | 0.28 | 0.18 | 0.44 | 30 | 0.4242 | 0.4236 | 0.4260 | 0.4250 | 0.16 | 0.40 | 0.16 | 35 | 0.4582 | 0.4579 | 0.4580 | 0.4590 | 0.09 | 0.07 | 0.15 | 40 | 0.4899 | 0.4899 | 0.4910 | 0.4910 | 0.00 | 0.22 | 0.22 |
| Average relative errors (%) | 0.41 | 0.37 | 0.38 |
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