Quick Answer
Calculate Rational Method Roof Gutter Flow Rate Calculator
Calculator
Result Interpretation
Rational Method Roof Gutter Flow Rate Calculator computes Volumetric Flow Rate in m^3/s using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Runoff Coefficient = 0.9
- Catchment Area = 120
- Rainfall Intensity = 5.56E-5
Expected Result:
- Volumetric Flow Rate = 0.0059952
Engineering Interpretation:
Under the given input conditions, the calculated result is: Volumetric Flow Rate = 0.0059952 m^3/s.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
volumetric flow rate = runoff coefficient * catchment area * rainfall intensityFormula family: formula_stormwater_roof_drainage_gutter_flow_calculator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| Runoff Coefficient | Runoff Coefficient | INPUT | Runoff Coefficient |
| Catchment Area | Catchment Area | INPUT | Catchment Area |
| Rainfall Intensity | Rainfall Intensity | INPUT | Rainfall Intensity |
| Volumetric Flow Rate | Volumetric Flow Rate | OUTPUT | Volumetric Flow Rate |
Calculation Steps
- Enter the runoff coefficient in dimensionless.
- Enter the catchment area in m^2.
- Enter the rainfall intensity in m/s.
- Step 1: Compute volumetric flow rate.
- Read the volumetric flow rate (m^3/s) from the results.
Engineering Summary
Calculate Rational Method Roof Gutter Flow Rate Calculator
Frequently Asked Questions
What does this calculator calculate?
The Rational Method Roof Gutter Flow Rate Calculator estimates Volumetric Flow Rate based on the input parameters you provide
Why is runoff coefficient important in this calculation?
runoff coefficient is directly proportional to volumetric flow rate. When you enter runoff coefficient in dimensionless, the calculator uses it in the engineering formula to compute the output
How should I interpret the result volumetric flow rate?
The calculator outputs volumetric 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: Runoff Coefficient (dimensionless), Catchment Area (m^2), Rainfall Intensity (m/s). 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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