WaterPy: UPF_laminarflow_f(): Friction loss for laminar flow

About:

Calculate the friction loss in a pipe, with uniform flow for laminar flow $(Re \leq 2000)$.

\begin{equation} f = \frac{Re}{64} \end{equation}

Where,

Re, Reynolds Number » WATER_reynoldsnumber_re().

Module: UniformPressurizedFlow

Function: UPF_laminarflow_f(q,t,s,d)

Definition of variables:

q, flow - m3/s;
e, pipe roughness - m;
t, temperature - ºC;
s, salinity - g/kg;
d, internal diameter - m.

Sample code:

from UniformPressurizedFlow import*
from WaterProperties import*

q = 0.001       #(m3/s)
d = 0.75        #(m)
t = 15          #(oC)
s = 2.5         #(g/kg)

re = WATER_reynoldsnumber_re(q,d,t,s)
f = UPF_laminarflow_f(q,t,s,d)

Result:

Re: 1496.0351140845949
f: 0.042779744537721494 m/m