Perda de carga em grades de tratamento de água
Downflow
Upflow

Input data

Flow (Q)

Width (b)

Width (w)

Spacing (d)

Downflow level (y)

Inclination (𝝓)

β - Kirschmer

Output data

Upflow level (yM)

Upflow velocity (UM)

Energy (EM)

Head loss (HL)

Upflow level at 50% (yM50%)

Upflow velocity at 50% (UM50%)

Head loss at 50% (hf50%)

Energy at 50% (EM50%)

Given the flow and the trash rack characteristics, calculates the upstream and downstream depths, velocities and specific velocities and the head losses for the clean and 50% obstructed trash rack.  or:  Given the flow and the trash rack characteristics, calculates the upstream and downstream depths, velocities and specific velocities and the head losses for the clean and 50% obstructed trash rack.

References

  • PESSOA, Constantino A. Tratamento de esgotos domésticos. 7. ed. Rio de Janeiro, ABES, 2014.