Search Ctrl K
Home / Tools
THE FEUTEX TOOLKIT

Venturi Differential Pressure Meter

Estimate discharge and throat velocity from differential pressure.

Hydraulics workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaQ=Cd A₂√[2Δp/(ρ(1−β⁴))].
Sources and model references

Worked example

Inputs

Upstream diameter
0.1 m
Throat diameter
0.05 m
Differential pressure
10000 Pa
Density
1000 kg/m³
Discharge coefficient
0.98

Expected results

Estimated volume flow
0.008887616885 m³/s
Throat mean velocity
4.52642611 m/s

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter every input in the labeled units; use measured or independently specified properties.
  2. Check the stated model assumptions before calculating.
  3. Interpret the output as a model estimate and verify it independently for the intended application.

Try this example

{
  "upstream": 0.1,
  "throat": 0.05,
  "dp": 10000,
  "rho": 1000,
  "cd": 0.98
}

Accuracy and scope

Incompressible horizontal venturi; coefficient must match the meter and Reynolds regime; no gas expansibility correction. Educational engineering estimate only; not structural or safety certification, equipment selection, or operating recommendations.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.