Recommendations
Rectangular channel - critical flowLamellar settling modulesRectangular section troughConventional settling tank: triangular weirs at the edges of the settled water troughsDischarge of decanters through manifoldand pressure ductPressure drop in Leopold blocks
Flocculated water distribution under plates
Default

Input data

Water temperature

Incoming flow

Number of settling tanks in parallel

Distribution duct upstream internal height (hu)

Distribution duct internal width (b)

Distribution duct downstream internal height (hd)

Roughness of pipe inner surface

Number of distribution tees (both sides)

Distribution tee diameter (D)

Output data

Upstream velocity in the distributor

Upstream velocity gradient

Downstream velocity in the distributor

Downstream velocity gradient

Velocity in the distribution tees

Velocity gradient in the distribution tees

Description

Calculate the outlet velocities and velocity gradients in distribution ducts given their inlet flow and geometry.

References

  • ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS – ABNT. (1992). NBR 12216 - NB-592 “Projeto de estações de tratamento de água para abastecimento público” ABNT, Rio de Janeiro, Brasil.