3.2.8 cw_brkic_praks - Brkic-Praks friction factor

f = cw_brkic_praks(d,e,re)

Calculate the Brkic-Praks approximation of the Colebrook-White equation.

Arguments

d

Pipe internal diameter ().

e

Pipe effective roughness .

re

Reynolds number

Returns Darcy friction factor , dimensionless.

Possible Errors

Brkic-Praks diameter is <= 0

The given internal diameter of the pipe must be above zero.