Recommendations
Sudden reductionHead losses in non-stratified granular bedsHead loss in the filter bed during washingHead loss in gradual reduction of channel sectionRayleigh's numberSigma rotary distributor for biological filter
Head loss in stratified clean filter bed
Default

Input data

Temperature

Flow

Area

Length (L)

Smaller grain diameter

Larger grain diameter

Porosity

Sphericity

Output data

Water kinematic viscosity (m²/s)

Head loss coefficient (hf = k.Q/A)

Head loss

Description

Given the water temperature, the flow, the area and the thickness of the filter, the smallest and the greatest grais diameter, the porosity and sphericity of the filter material, calculates the head loss coefficient for a given apparent velocity.

stratified clean filter bed

References

  • VIANNA, Marcos Rocha. Produção, Reservação e Distribuição de Água. e-book. Belo Horizonte: Bloom, 2021.