cheng - Cheng friction factor

[next] [prev] [prev-tail] [tail] [up]

3.2.27 cheng - Cheng friction factor

f = cheng(d,e,re)

Calculate the Cheng approximation of the Colebrook-White equation.

Arguments

d: Pipe internal diameter ( $m$ ).
e: Pipe effective roughness $ε$ .
re: Reynolds number

Returns Darcy friction factor $f$ , dimensionless.

[next] [prev] [prev-tail] [front] [up]