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Table 3

Step height vs head over weir comparison chart (theoretical, experimental, CFD approach – original CBC weir model)

Sr. No.	y₂ (cm) theoretical	y₂ (cm) CFD	y₂ (cm) experimental	Head above weir crest (y₂-y), h (cm) theoretical	Head above weir crest CFD (cm)	Head above weir crest (y₂-y), h (cm) experimental
1	6.568	6.56	7.388	4.868	4.86	5.688
2	7.725	7.717	8.94	6.025	6.017	7.24
3	8.714	8.706	9.97	7.014	7.006	8.27
4	9.589	9.593	10.96	7.889	7.893	9.26
5	10.38	10.38	11.64	8.68	8.68	9.94
6	11.107	11.103	12.096	9.407	9.403	10.396
7	11.78	11.77	12.52	10.08	10.07	10.82
8	12.41	12.403	13.07	10.71	10.703	11.37
9	13	13	13.436	11.3	11.3	11.736
10	13.57	13.56	13.54	11.87	11.86	11.84

Sr. No.	y₂ (cm) theoretical	y₂ (cm) CFD	y₂ (cm) experimental	Head above weir crest (y₂-y), h (cm) theoretical	Head above weir crest CFD (cm)	Head above weir crest (y₂-y), h (cm) experimental
1	6.568	6.56	7.388	4.868	4.86	5.688
2	7.725	7.717	8.94	6.025	6.017	7.24
3	8.714	8.706	9.97	7.014	7.006	8.27
4	9.589	9.593	10.96	7.889	7.893	9.26
5	10.38	10.38	11.64	8.68	8.68	9.94
6	11.107	11.103	12.096	9.407	9.403	10.396
7	11.78	11.77	12.52	10.08	10.07	10.82
8	12.41	12.403	13.07	10.71	10.703	11.37
9	13	13	13.436	11.3	11.3	11.736
10	13.57	13.56	13.54	11.87	11.86	11.84