Calculations
Head loss in water treatment trash racks
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%)

References

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