darcy_weisbach: Darcy–Weisbach equation
In ratral/wcontrolvalve: Meta Analysis Plunger Valves

Description Usage Arguments Value Author(s) Examples

In fluid dynamics, the Darcy–Weisbach equation is an empirical equation, which relates the head loss, or pressure loss, due to friction along a given length of pipe to the average velocity of the fluid flow for an incompressible fluid. The Darcy–Weisbach equation contains a dimensionless friction factor, known as the Darcy friction factor. This is also variously called the Darcy–Weisbach friction factor, friction factor, resistance coefficient, or flow coefficient. [https://en.wikipedia.org/wiki/Darcy

1	darcy_weisbach(flow, pipe_length, dn, roughness, temp = 15.6)

`flow`	cubic meter per second (m3/s)
`pipe_length`	length of pipe (m)
`dn`	inner diameter of pipe (m)
`roughness`	internal roughness of the pipe in (m)
`temp`	temperature in °C

head loss (m)

Dr. Raúl Trujillo Álvarez dr.ing.trujillo@gmail.com

darcy_weisbach( flow = 0.042,
                pipe_length = 970,
                dn = 0.150,
                roughness = 1.5e-6,
                temp = 14.5)