Recommendations
Reentrant inlet45° elbowSharp-edged inletHead loss in gradual reduction of channel sectionCentrifugal Decanter (Pieralisi)Baffles in coagulated water channel
Well-rounded inlet
Given the flow
Coefficient

Input data

Flow

Diameter

Output data

Given the flow

Description

Performs head losses calculations in well-rounded inlets. There are two options:

Given the flow

Given the flow and the well-rounded inlet diameter, calculates the corresponding head loss.

hf=k.U22g h_f = k. \frac{U^2}{2g}

Coefficient

Given the well-rounded inlet diameter, calculates the head losses coeficients corresponding to the expressions:

  • k applicable to the expression:
    hf=k.U22g h_f = k. \frac{U^2}{2g}
  • kQ applicable to the expression:
    hf=kQ.Q2 h_f = k_Q. Q^2

Well-rounded inlet

References

  • Silvestre, Paschoal. Hidráulica geral. Rio de Janeiro, LTC, 1979.