3.3.5 helical_gnielinski - Gnielinski helical friction factor

f = helical_gnielinski(re,de,d,r)

Computes the Gnielinski friction factor for helical pipes for turbulent flow.

Arguments

re

Reynolds number .

de

Dean number .

d

Pipe inner diameter ().

r

Helix radius .

Returns Helical friction factor (Darcy definition) , dimensionless.

Possible Errors

Helical-Gnielinski unknwon amount of arguments

An unknown amount of arguments was specified.