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THE FEUTEX TOOLKIT

Rectangular Hydraulic Jump

Find sequent depth and energy dissipation for a horizontal rectangular channel.

Hydraulics workspace● Runs in your browser
01 Your input
02 Your result
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Formulay₂/y₁=(√(1+8Fr₁²)−1)/2; ΔE=(y₂−y₁)³/(4y₁y₂).
Sources and model references

Worked example

Inputs

Upstream depth
0.2 m
Upstream velocity
5 m/s

Expected results

Upstream Froude number
3.570217453
Sequent depth
0.914749335 m
Specific energy loss
0.4989639746 m

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

{
  "depth": 0.2,
  "velocity": 5
}

Accuracy and scope

Ideal hydraulic jump in a horizontal rectangular channel; no jump-length or stilling-basin design. 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.