Table 6.

Fitted parameters and goodness of fit indicators for the Power-law velocity profile model for both PVC90 and PVC63 treated pipes.

	Test	Re	Vmax	n	R2	MAE		RMSE
						(m/s)	%	(m/s)	%
PVC90	1	1.27E+04	0.19	3.6	0.85	0.0115	7.00	0.0136	8.95
	2	1.95E+04	0.28	4.5	0.89	0.0114	4.96	0.0141	6.07
	3	2.13E+04	0.30	5.8	0.84	0.0136	5.35	0.0159	6.27
	4	2.77E+04	0.38	6.3	0.98	0.0066	2.06	0.0084	2.55
	5	3.28E+04	0.44	7.8	0.94	0.0089	2.48	0.0107	2.73
	6	3.88E+04	0.54	5.9	0.96	0.0094	2.15	0.0117	2.54
	7	4.40E+04	0.61	6.1	0.97	0.0118	2.37	0.0132	2.52
	8	4.86E+04	0.68	5.9	0.99	0.0099	1.85	0.0120	2.06
	9	5.36E+04	0.72	7.1	0.98	0.0087	1.53	0.0130	2.03
	10	6.40E+04	0.89	5.9	0.98	0.0143	1.97	0.0165	2.16
	11	7.48E+04	1.01	7.1	0.99	0.0098	1.24	0.0148	1.66
	12	8.32E+04	1.13	7.0	0.98	0.0135	1.46	0.0172	1.73
PVC63	1	1.11E+04	0.27	2.2	0.78	0.0304	12.40	0.0368	19.49
	2	1.41E+04	0.31	3.3	0.96	0.0102	3.91	0.0120	5.03
	3	2.13E+04	0.41	6.4	0.95	0.0095	2.88	0.0105	2.91
	4	2.74E+04	0.51	8.9	0.80	0.0178	4.28	0.0206	4.43
	5	3.68E+04	0.69	8.2	0.83	0.0241	4.33	0.0272	4.35
	6	4.28E+04	0.78	11.4	0.77	0.0221	3.52	0.0276	3.79
	7	4.93E+04	0.92	9.4	0.89	0.0222	3.03	0.0253	3.02
	8	5.54E+04	1.05	7.8	0.94	0.0242	2.86	0.0252	2.67
	9	5.99E+04	1.15	7.2	0.97	0.0198	2.14	0.0205	2.01
	10	6.86E+04	1.32	7.0	0.99	0.0132	1.22	0.0139	1.19
	11	8.96E+04	1.73	6.7	0.99	0.0162	1.15	0.0181	1.19
	12	9.36E+04	1.80	7.0	0.98	0.0206	1.42	0.0261	1.64