cw_manadilli - Manadilli friction factor

f = cw_manadilli(d,e,re)

Calculate the Manadilli approximation of the Colebrook-White equation for range $4000≤ Re≤ 108$ and $0≤ ε/D ≤ 0.05$ .

Arguments

Returns Darcy friction factor $f$ , dimensionless.

Possible Errors

Manadilli approximation is only valid for 4000 <= Re <= 1e8: The given Reynolds number is out of range.
Manadilli approximation is only valid for 0 <= e/D <= 0.05: The given pipe roughness/diameter fraction is out of range.
Manadilli diameter is <= 0: The given internal diameter of the pipe must be above zero.