Quick Answer
Calculate Airport Airfield Drainage Runoff Volume and Peak Flow Rate (Rational Method with Airfield-Specific C)
Calculator
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Find Engineering Solutions →Result Interpretation
Airport Airfield Drainage Runoff Volume and Peak Flow Rate (Rational Method with Airfield-Specific C) calculator computes Peak Flow Rate in m^3/s using the defined engineering formula and the input values provided. Peak Flow Rate is expressed in m^3/s. No universal acceptance threshold is defined by this calculator.
Worked Example
Verified calculation
Given:
- Airfield Runoff Coefficient = 0.85
- Rainfall Intensity = 100
- Drainage Area = 32000
Expected Result:
- Peak Flow Rate = 755.55555555556
Engineering Interpretation:
Under the given input conditions, the calculated result is: Peak Flow Rate = 755.55555555556 m^3/s.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.
Formula / Method
peak flow rate = airfield runoff coefficient * rainfall intensity * drainage area / 3600.0Formula family: formula_airport_stormwater_runoff_volume_and_peak_flow_rate_calculator_for_airfield_drainage_design
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| C_airfield | Airfield Runoff Coefficient | INPUT | Airfield Runoff Coefficient |
| i | Rainfall Intensity | INPUT | Rainfall Intensity |
| A | Drainage Area | INPUT | Drainage Area |
| result | Peak Flow Rate | OUTPUT | Peak Flow Rate |
Calculation Steps
- Enter the airfield runoff coefficient in dimensionless.
- Enter the rainfall intensity in mm/h.
- Enter the drainage area in m^2.
- Step 1: Compute peak flow rate.
- Read the peak flow rate (m^3/s) from the results.
Engineering Summary
Calculate Airport Airfield Drainage Runoff Volume and Peak Flow Rate (Rational Method with Airfield-Specific C)
Frequently Asked Questions
What does this calculator calculate?
The Airport Airfield Drainage Runoff Volume and Peak Flow Rate (Rational Method with Airfield-Specific C) calculator estimates Peak Flow Rate based on the input parameters you provide
Why is airfield runoff coefficient important in this calculation?
airfield runoff coefficient is directly proportional to peak flow rate. When you enter airfield runoff coefficient in dimensionless, the calculator uses it in the engineering formula to compute the output
How should I interpret the result peak flow rate?
The calculator outputs peak flow rate in m^3/s. To convert to liters per second, multiply by 1000. For liters per minute, multiply by 60000. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Airfield Runoff Coefficient (dimensionless), Rainfall Intensity (mm/h), Drainage Area (m^2). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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