A Quasi-3D Numerical Model for Grout Injection in a Parallel Fracture Based on Finite Volume Method

Table 2

Grout pressure distribution over radius at t = 20 s in Case 1.

Radius; r (m)	Pressure (p-p0)
	Analytical; (kPa)	Quasi-3D model; (kPa)	Fluent_2l; (kPa)	Fluent_6l; (kPa)	Relative errors (%)
					Quasi-3D model	Fluent_2l	Fluent_6l
0.025	0.9463	0.9372	0.6191	0.8772	0.96	34.58	7.30
0.050	0.6968	0.6896	0.4611	0.6527	1.03	33.83	6.33
0.075	0.5508	0.5415	0.3654	0.5167	1.69	33.66	6.19
0.100	0.4473	0.4383	0.2969	0.4193	2.01	33.62	6.26
0.125	0.3669	0.3574	0.2436	0.3436	2.62	33.62	6.38
0.150	0.3013	0.2921	0.2000	0.2816	3.05	33.62	6.54
0.175	0.2458	0.2375	0.1631	0.2292	3.38	33.65	6.75
0.200	0.1978	0.1906	0.1311	0.1838	3.64	33.72	7.08
0.225	0.1553	0.1494	0.1029	0.1447	3.80	33.74	6.83
0.250	0.1174	0.1127	0.0777	0.1092	4.00	33.82	6.98
0.275	0.0831	0.0796	0.0548	0.0776	4.21	34.06	6.62
0.300	0.0518	0.0495	0.0340	0.0482	4.44	34.36	6.95
Average relative errors (%)					2.90	33.86	6.68