Rational Method: Peak Flow Q = C·i·A with Unit Conversions
This lesson is part of the course
In this lesson
You size the design flood of a small urban catchment: a composite runoff coefficient, the Kirpich time of concentration, the intensity from an IDF curve and the peak flow in m³/s.
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Lessons in this course
- Catchment Rainfall: Arithmetic Mean vs Thiessen Weights Locked
- Rational Method: Peak Flow Q = C·i·A with Unit Conversions Locked
- SCS Curve Number: How Much Rain Becomes Runoff? Locked
- Unit Hydrograph Convolution: From Excess Rain to a Flood Hydrograph Locked
- Reservoir Water Balance: Inflow, Release, Evaporation & Storage Locked
- Flow Duration Curve: Ranks, Exceedance & Q95 Locked
- Water Demand Forecasting: Population, Per-Capita Use & Losses Locked
- Pipe Flow Basics: Q = V·A and Hazen-Williams Head Loss Locked