Roughness value for rubber hose
Roughness value for rubber hose
(OP)
I see this question come up from time to time, but I don't think I've ever seen a definitive answer. I didn't find a good answer using the keyword search function. Anyone know what range of roughness values (or friction factors) to apply to rubber hose for the purpose of calculating flow rates? Would clean commercial steel pipe be a good approximation?





RE: Roughness value for rubber hose
I have used an absolute roughness figure of 0.7 micron in the past for hose having a liner extruded in nylon.
RE: Roughness value for rubber hose
RE: Roughness value for rubber hose