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Seepage Velocity Porosity Factor Tool

Calculate seepage velocity porosity factor from explicit caller-supplied inputs.

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Description

Divide signed darcyFlux by effectivePorosity in (0, 1] for seepageVelocity.

Groundwater components relate hydraulic head, storage, porosity, and supplied flow parameters. A local equation uses a declared aquifer model; it does not establish that model from field observations.

Divide signed darcyFlux by effectivePorosity in (0, 1] for seepageVelocity.

When to use this tool

Use Seepage Velocity Porosity Factor when you need one explicit groundwater or soil-storage component.

How to use the tool and how it works

  1. Enter darcyFlux, effectivePorosity. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read seepageVelocity. Use the output convention below.

Divide signed darcyFlux by effectivePorosity in (0, 1] for seepageVelocity.1

Input fieldMeaning and unitsAccepted input
darcyFluxDarcy FluxRequired. Finite number.
effectivePorosityEffective PorosityRequired. Finite number; maximum 1; strictly above 0.
Output fieldInterpretationReturned shape
seepageVelocitySeepage VelocityRequired. Finite number.
json
{
  "input": {
    "darcyFlux": 0.02,
    "effectivePorosity": 0.25
  },
  "output": {
    "seepageVelocity": 0.08
  }
}

Limitations and assumptions

  • Porosity is a dimensionless connected-flow fraction; output retains the Darcy-flux length/time unit and does not estimate dispersion, travel paths, or actual solute arrival time.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use suitable field measurements, aquifer assumptions, and a complete groundwater analysis for resource or safety decisions.

References

  1. Calculation and input contract: hydrology/seepage-velocity-porosity-factor — tool.io

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