Recommendations
Atmospheric pressure given altitudeHead loss in stratified clean filter bedHead loss in the filter bed during washingRayleigh's numberSine
Expansão do leito filtrante
Default

Input data

Temperature

Effective size

Uniformity coefficient

Specific weigth

Porosity

Length (a)

Width (b)

Diameter (D)

Depth of the filter bed

Washing velocity

Output data

Expanded bed depth

Expansion

References

  • AMIRTHARAJAH, A; CLEASBY, J. L. Predicting expansion of filters during backwash. Journal AWWA, v. 64, n. 1, p. 52-9, jan. 1972.