Two parallel sections of pipe branch from the same split point. Both branches end at the same pressure and the same elevation. Branch 1 is 3-in, schedule-40, commercial-steel pipe and has an equivalent length of 12 m. Branch 2 is 2-in, schedule-80, commercial-steel pipe and has an equivalent length of 9 m.

Assuming fully turbulent flow, what is the split ratio between the two branches?

Suppose that Branch 2 ends 5 m higher than Branch 1. What is the split ratio between the branches in this case?