Description

Adds up the minor head losses of the fittings along a pipe of one diameter. Enter how many of each fitting the line has; fittings not in the list can be added as an additional k.

Coefficient

Given the diameter, calculates the sum of the loss coefficients, and the coefficients for the expressions:

$h_f = \sum k \cdot \frac{U^2}{2g} \qquad h_f = k_Q \cdot Q^2$

Given the flow

Given the flow and the diameter, also calculates the velocity and the head loss.

Notes

The k values are approximate, typical values (Azevedo Netto). For gradual expansions and reductions, k refers to the velocity in the smaller section. Where a fitting's k depends on its geometry, its opening or the flow split, its own block gives a more precise value, which can be entered as an additional k.