| Hardy-Cross | Solution to example problem | ||||||||||||||||
| 2-loops (6 pipes) | |||||||||||||||||
| Lng (ft) | Dia. (ft) | ||||||||||||||||
| AB | K'= | 306 | AB | 2500 | 0.33 | ||||||||||||
| BD | K'= | 7.7 | BC | 3500 | 0.42 | ||||||||||||
| DE | K'= | 5.7 | DC | 6000 | 0.50 | ||||||||||||
| EA | K'= | 368 | BD | 2000 | 0.67 | ||||||||||||
| BC | K'= | 140 | ED | 1500 | 0.67 | f= | 0.02 | ||||||||||
| CD | K'= | 97 | AE | 3000 | 0.33 | ||||||||||||
| DB | K'= | 7.7 | |||||||||||||||
| Loop 1 | Loop 2 | Loop 1 | Loop 2 | Corrected Loop 1 | Corrected Loop 2 | ||||||||||||
| Iteration | Qa-b | Qb-d | Qd-e | Qe-a | Qb-c | Qc-d | Qdb | correction | correction | Qa-b | Qb-d | Qd-e | Qe-a | Qb-c | Qc-d | Qdb | |
| 1 | 0.70 | 0.40 | 0.30 | 0.80 | 0.30 | 0.70 | 0.40 | 0.08 | 0.16 | 0.78 | 0.32 | 0.22 | 0.72 | 0.46 | 0.54 | 0.32 | |
| 2 | 0.78 | 0.32 | 0.22 | 0.72 | 0.46 | 0.54 | 0.32 | 0.00 | -0.01 | 0.78 | 0.33 | 0.22 | 0.72 | 0.45 | 0.55 | 0.33 | |
| 3 | 0.78 | 0.33 | 0.22 | 0.72 | 0.45 | 0.55 | 0.33 | 0.00 | 0.00 | 0.78 | 0.33 | 0.22 | 0.72 | 0.45 | 0.55 | 0.33 | |
| 4 | 0.78 | 0.33 | 0.22 | 0.72 | 0.45 | 0.55 | 0.33 | 0.00 | 0.00 | 0.78 | 0.33 | 0.22 | 0.72 | 0.45 | 0.55 | 0.33 | |