3.3.3 helical_white - White helical friction factor

f = helical_white(re, de)

Computes the White friction factor for helical pipes with a given dean number in range of .

Arguments

re

Reynolds number .

de

Dean number .

Returns Helical friction factor (Darcy definition) , dimensionless.

Possible Warnings

Helical-White friction only valid for 11.6 <= De <= 2000

The White helical pipe friction factor is only valid for a .

Possible Errors

Helical-White unknwon amount of arguments

An unknown amount of arguments was specified.