Calculations
Recommendations
UASB check-list: hydraulic parametersVelocity gradient in pipes and circular orificesLamellar settling modulesSettling tank: hydraulic superficial loading rateTray floculator compartmentVelocity gradient to Parshall meterParshall flume
Input data
Throat width
Water height
Output data
Flow
A
B
C
D
E
F
G
K
N
Input data
Throat width (W)
Output data
A
B
C
D
E
F
G
K
N
Description
The Parshall flume is a hydraulic structure widely used to measure water flow in open channels. This calculation method allows the design and evaluation of Parshall flumes under various flow conditions.
With the Parshall flume calculation tool, the following operations can be performed:
- Calculate the flow rate () based on the water height () and throat width ().
- Determine the water height () for a given flow rate () and throat width ().
Parshall flume
Input and Output Parameters
Parameter | Default Units | Description |
|---|---|---|
Throat width (W) | inches | Width of the narrowest part of the flume |
Water height (y) | meters | Water level height in the flume |
Flow (Q) | Water flow through the flume | |
A, B, C, D, E, F, G, K, N | meters | Specific geometric dimensions of the flume |
References
- AZEVEDO NETTO, J. M. de; FERNANDEZ Y FERNANDEZ, Miguel. Manual de hidráulica, 9.ed. São Paulo: Blucher, 2015.