Recommendations

Well-rounded inletConic inletPipe exitDimensions of a rectangleHead loss in gradual reduction of channel sectionSharp-edged inlet

Given the flow

Coefficient

Performs head losses calculations in sharp-edged inlet. There are two options:

Given the flow and the sharp-edged inlet diameter, calculates the corresponding head loss.

$hf = k.U²/2g$

Given the sharp-edged inlet diameter, calculates the head losses coefficients corresponding to the expressions:

- k applicable to the expression:
$hf = k.U²/2g$
- kQ applicable to the expression:
$hf = kQ.Q²$

Performs head losses calculations in sharp-edged inlet. There are two options:

Given the flow and the sharp-edged inlet diameter, calculates the corresponding head loss.

$hf = k.U²/2g$

Given the sharp-edged inlet diameter, calculates the head losses coefficients corresponding to the expressions:

- k applicable to the expression:
$hf = k.U²/2g$
- kQ applicable to the expression:
$hf = kQ.Q²$

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