Search Ctrl K
Home / Tools
THE FEUTEX TOOLKIT

Rectangular Channel Critical Flow

Find critical depth, minimum specific energy and critical velocity.

Hydraulics workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
Formulayc=(q²/g)^(1/3); Emin=3yc/2.
Sources and model references

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

{
  "flow": 2,
  "width": 2
}

Accuracy and scope

Rectangular channel with hydrostatic pressure and kinetic-energy correction factor equal to one. 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.