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THE FEUTEX TOOLKIT

Darcy Groundwater Flux

Calculate porous-medium discharge, seepage velocity and travel time.

Civil Engineering workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaQ=KiA; pore velocity=Ki/ne.
Sources and model references

Worked example

Inputs

Hydraulic conductivity
0.0001 m/s
Hydraulic gradient
0.01
Bulk flow area
10 m²
Effective porosity
0.25
Flow-path distance
100 m

Expected results

Discharge
1e-05 m³/s
Average seepage velocity
4e-06 m/s
Advective travel time
25000000 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

{
  "conductivity": 0.0001,
  "gradient": 0.01,
  "area": 10,
  "porosity": 0.25,
  "length": 100
}

Accuracy and scope

Homogeneous saturated Darcy flow; travel time ignores dispersion, sorption and preferential flow. 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.