Recommendations
Mechanized mixer for flash mixing (Aquaflash) and flocculation (Aquafloc)Atmospheric pressure given altitudeSodium orthopolyphosphate solutionDynamic viscosity of atmospheric airHead loss coefficient of a totally open butterfly valve

Velocity gradient in generic triangular weir

Input data

Flow

Downstream height (yj)

Downstrem reservoir area

Temperature

Depth of the downstream reservoir

Output data

Liquid film of the weir (yv)

Detention time

Velocity gradient

Description

Given the flow, temperature, height of fall and the geometric caractheristics of the downflow chamber, calculates the liquid heigh imposed by the weir, the detention time and the velocity gradient.

Triangular weirTriangular weir

References

  • VIANNA, Marcos R. Hidráulica aplicada às estações de tratamento de água. 6. Ed. Belo Horizonte, 3I, 2019.