Input data

Flow

Width (b)

Trashrack width (W)

Distance between trashracks (d)

Downflow level (y)

Inclination (º)

β - Kirschmer

Output data

Upflow level

Upflow velocity

Energy

Velocity between bars

Head loss

Upflow level at 50%

Upflow velocity at 50%

Velocity between bars at 50%

Upflow energy at 50%

Head loss at 50%

Description

Given the flow, the geometric data of the channel and the characteristics of the screen, calculates the upflow water level if the downflow water level is known or the downflow water level if the upflow water level is known.

Description

References

WEF, ASCE, EWRI (2010). Design of municipal wastewater treatment plants. Volume 2: liquid treatment processes. New York, McGraw Hill.