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Peak Rate of Runoff in Rational Formula Formula

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The Peak Drainage Discharge by Rational Formula estimates stormwater runoff using parameters such as rainfall intensity, catchment area, and runoff coefficient to determine the maximum flow rate. Check FAQs

Q R = \frac{C r \cdot A c \cdot P c}{36}

Q_R - Peak Drainage Discharge by Rational Formula?C_r - Runoff Coefficient?A_c - Area of Catchment?P_c - Critical Rainfall Intensity?

Peak Rate of Runoff in Rational Formula Example

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Here is how the Peak Rate of Runoff in Rational Formula equation looks like with Values.

Here is how the Peak Rate of Runoff in Rational Formula equation looks like with Units.

Here is how the Peak Rate of Runoff in Rational Formula equation looks like.

4187.5 = \frac{0.5 \cdot 15 \cdot 2.01}{36}

4187.5m³/s = \frac{0.5 \cdot 15ha \cdot 2.01cm/h}{36}

4187.5 = \frac{0.5 \cdot 15 \cdot 2.01}{36}

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Peak Rate of Runoff in Rational Formula Solution

Follow our step by step solution on how to calculate Peak Rate of Runoff in Rational Formula?

FIRST Step Consider the formula

Q R = \frac{C r \cdot A c \cdot P c}{36}

Next Step Substitute values of Variables

∴

Q R = \frac{0.5 \cdot 15ha \cdot 2.01cm/h}{36}

Next Step Convert Units

∴

Q R = \frac{0.5 \cdot 150000m² \cdot 2.01cm/h}{36}

Next Step Prepare to Evaluate

∴

Q R = \frac{0.5 \cdot 150000 \cdot 2.01}{36}

LAST Step Evaluate

∴

Q R = 4187.5m³/s

Peak Rate of Runoff in Rational Formula Formula Elements

Variables

Peak Drainage Discharge by Rational Formula

The Peak Drainage Discharge by Rational Formula estimates stormwater runoff using parameters such as rainfall intensity, catchment area, and runoff coefficient to determine the maximum flow rate.

Symbol: Q_R

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Peak Drainage Discharge by Rational Formula

Runoff Coefficient

Runoff Coefficient is a dimensionless coefficient relating the amount of runoff to the amount of precipitation received.

Symbol: C_r

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Runoff Coefficient

Area of Catchment

Area of Catchment refers to the area of land where all water flows to a single stream, river, lake or even ocean.

Symbol: A_c

Measurement: AreaUnit: ha

Note: Value can be positive or negative.

Formulas to find Area of Catchment

Critical Rainfall Intensity

Critical Rainfall Intensity is the precipitation rate at which surface runoff initiates, leading to increased risk of flooding or other hydrological hazards.

Symbol: P_c

Measurement: SpeedUnit: cm/h

Note: Value should be greater than 0.

Formulas to find Critical Rainfall Intensity

Other formulas in Peak Drainage Discharge by Rational Formula category

Go Coefficient of Runoff given Peak Rate of Runoff

C r = \frac{36 \cdot Q R}{A c \cdot P c}

Go Catchment Area given Peak Rate of Runoff and Rainfall Intensity

A c = \frac{36 \cdot Q R}{C r \cdot P c}

Go Critical Rainfall Intensity for Peak Rate of Runoff

P c = \frac{36 \cdot Q R}{A c \cdot C r}

How to Evaluate Peak Rate of Runoff in Rational Formula?

Peak Rate of Runoff in Rational Formula evaluator uses Peak Drainage Discharge by Rational Formula = (Runoff Coefficient*Area of Catchment*Critical Rainfall Intensity)/36 to evaluate the Peak Drainage Discharge by Rational Formula, The Peak Rate of Runoff in Rational Formula is defined as the maximum rate of flow during a storm event. It is a critical factor in designing storm water management systems, such as culverts, storm sewers, and detention basins. Peak Drainage Discharge by Rational Formula is denoted by Q_R symbol.

How to evaluate Peak Rate of Runoff in Rational Formula using this online evaluator? To use this online evaluator for Peak Rate of Runoff in Rational Formula, enter Runoff Coefficient (C_r), Area of Catchment (A_c) & Critical Rainfall Intensity (P_c) and hit the calculate button.

FAQs on Peak Rate of Runoff in Rational Formula

What is the formula to find Peak Rate of Runoff in Rational Formula?

The formula of Peak Rate of Runoff in Rational Formula is expressed as Peak Drainage Discharge by Rational Formula = (Runoff Coefficient*Area of Catchment*Critical Rainfall Intensity)/36. Here is an example- 4187.5 = (0.5*150000*5.58333333333333E-06)/36.

How to calculate Peak Rate of Runoff in Rational Formula?

With Runoff Coefficient (C_r), Area of Catchment (A_c) & Critical Rainfall Intensity (P_c) we can find Peak Rate of Runoff in Rational Formula using the formula - Peak Drainage Discharge by Rational Formula = (Runoff Coefficient*Area of Catchment*Critical Rainfall Intensity)/36.

Can the Peak Rate of Runoff in Rational Formula be negative?

No, the Peak Rate of Runoff in Rational Formula, measured in Volumetric Flow Rate cannot be negative.

Which unit is used to measure Peak Rate of Runoff in Rational Formula?

Peak Rate of Runoff in Rational Formula is usually measured using the Cubic Meter per Second[m³/s] for Volumetric Flow Rate. Cubic Meter per Day[m³/s], Cubic Meter per Hour[m³/s], Cubic Meter per Minute[m³/s] are the few other units in which Peak Rate of Runoff in Rational Formula can be measured.

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Peak Rate of Runoff in Rational Formula Formula

Peak Rate of Runoff in Rational Formula Example

Peak Rate of Runoff in Rational Formula Solution

Peak Rate of Runoff in Rational Formula Formula Elements

Other formulas in Peak Drainage Discharge by Rational Formula category

How to Evaluate Peak Rate of Runoff in Rational Formula?

FAQs on Peak Rate of Runoff in Rational Formula

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