Description

Performs head losses calculations in contraction. There are two options:

Given the flow

Given the flow, the outlet diameter of the contraction and the reduction angle, calculates the corresponding head loss.

Coefficient

Given the outflow pipe diameter and the reduction angle, calculates the head losses coeficients corresponding to the expressions:

• k applicable to the expression:
  $$h_f = k. \frac{U^2}{2g}$$
• kQ applicable to the expression:
  $$h_f = k_Q. Q^2$$