Plumbing Bioswale Flow Capacity Calculator
Ideal uniform open channel bioswale ManningQ=AR^(2/3)√S/n, actual calibrated roughness/wetted geometry, no infiltration/vegetation storage or rainfall capacity certification. Actual independently matched units, regime, material/equipment and governing references; not a hydraulic code, safe pressure, water pot ability or operational approval.
Description
A Manning flow estimate uses wetted area, hydraulic radius, energy slope and roughness.
A Manning flow estimate uses wetted area, hydraulic radius, energy slope and roughness.1
Its uniform open-channel branch does not represent storage or infiltration. The calculation and input requirements are explained below.
When to use Plumbing Bioswale Flow Capacity Calculator
Enter nonnegative wetted area m² and energy slope, positive hydraulic radius meters and independently calibrated Manning n.
How to use Plumbing Bioswale Flow Capacity Calculator and how it works
- Prepare the measurements or independently established model inputs described below, with matching units and observation scope.
- Enter the required fields and run Plumbing Bioswale Flow Capacity Calculator.
- Read the result fields using the formula, output units, signs and ordering explained below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualBioswaleWettedFlowAreaSquareMeters | Actual Bioswale Wetted Flow Area Square Meters. Use the units and matching context stated in the calculation below. | number | Required; nonnegative; finite; other constraints below |
| actualBioswaleHydraulicRadiusMeters | Actual Bioswale Hydraulic Radius Meters. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| actualFrictionEnergySlope | Actual Friction Energy Slope. Use the units and matching context stated in the calculation below. | number | Required; nonnegative; finite; other constraints below |
| callerCalibratedBioswaleManningN | Caller Calibrated Bioswale Manning N. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
Enter nonnegative wetted area m² and energy slope, positive hydraulic radius meters and independently calibrated Manning n. Return A*R^(2/3)*sqrt(S)/n in m³/s for the declared uniform open-channel branch. Storage, infiltration and vegetation performance are not estimated.
flowM3ps=areaM2*radiusM^(2/3)*sqrt(slope)/ManningN Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Numeric result under the formula and output units explained above. | number |
{
"input": {
"actualBioswaleWettedFlowAreaSquareMeters": 5,
"actualBioswaleHydraulicRadiusMeters": 1,
"actualFrictionEnergySlope": 1,
"callerCalibratedBioswaleManningN": 1
},
"output": {
"result": {
"value": 5
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Plumbing French Drain Flow Calculator for a complementary operation: Darcy porous-medium flow relates conductivity, area and hydraulic gradient.
Use Plumbing Roof Drain Flow Rate Calculator for a complementary operation: Roof runoff relates rain intensity, contributing area and a runoff fraction.
References
Similar or alternative tools
- Plumbing French Drain Flow Calculator
Darcy porous-medium flow relates conductivity, area and hydraulic gradient.
- Plumbing Roof Drain Flow Rate Calculator
Roof runoff relates rain intensity, contributing area and a runoff fraction.