Flow Rate through Smooth Bore Hose 2

[Chairs]

I assumed this was easy but I'm having difficulty finding the right equation. I need to calculate the flow rate in GPM of a smooth bore hose. The diameter is 3/8", length is 100 ft, inlet pressure is 250 psi and outlet is atmospheric (14.7 psi). The rest is unknown

 

[Latexman]

It's iterative. Assume a v, calculate a v, adjust a v, calculate a v, adjust a v, calculate a v, . . . until adjusted v = calculated v.

Good luck,
Latexman

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