Pressure loss
This module computes linear head losses in a circular pipe with the following laws:
The following values can be computed:
- Flow (m3/s)
- Pipe diameter (m)
- Total pressure loss (m)
- Pipe length (m)
- Singular head loss coefficient
The total pressure loss is the sum of linear losses \(J_{lin}\), according to the used law, and singular losses \(J_{loc}\) depending on the above coefficient.
Singular pressure loss
\[ J_{loc} = K_{loc} \frac{V^2}{2g}\]
Given :
- \(K_{loc}\) : singular head loss coefficient
- \(V\) : water speed in the pipe (\(V = 4 Q / \pi / D^2\))
Linear head loss coefficient
\[ K_{lin} = \frac{2g J_{lin}}{V^2} \]
Darcy head loss coefficient
\[ f_D = \frac{2g J D}{l_T V^2} \]