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Rate of flow or discharge Formula

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Rate of Flow is the rate at which a liquid or other substance flows through a particular channel, pipe, etc. Check FAQs

Q = A cs \cdot v avg

Q - Rate of Flow?A_cs - Cross-Sectional Area?v_avg - Average Velocity?

Rate of flow or discharge Example

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Here is how the Rate of flow or discharge equation looks like with Values.

Here is how the Rate of flow or discharge equation looks like with Units.

Here is how the Rate of flow or discharge equation looks like.

994500 = 130 \cdot 76.5

994500cm³/s = 130cm² \cdot 76.5m/s

994500 = 130 \cdot 76.5

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Rate of flow or discharge Solution

Follow our step by step solution on how to calculate Rate of flow or discharge?

FIRST Step Consider the formula

Q = A cs \cdot v avg

Next Step Substitute values of Variables

∴

Q = 130cm² \cdot 76.5m/s

Next Step Convert Units

∴

Q = 0.013m² \cdot 76.5m/s

Next Step Prepare to Evaluate

∴

Q = 0.013 \cdot 76.5

Next Step Evaluate

∴

Q = 0.9945m³/s

LAST Step Convert to Output's Unit

∴

Q = 994500cm³/s

Rate of flow or discharge Formula Elements

Variables

Rate of Flow

Rate of Flow is the rate at which a liquid or other substance flows through a particular channel, pipe, etc.

Symbol: Q

Measurement: Volumetric Flow RateUnit: cm³/s

Note: Value can be positive or negative.

Formulas to find Rate of Flow

Cross-Sectional Area

Cross-Sectional Area is the area of a two-dimensional shape that is obtained when a three-dimensional shape is sliced perpendicular to some specified axis at a point.

Symbol: A_cs

Measurement: AreaUnit: cm²

Note: Value should be greater than 0.

Formulas to find Cross-Sectional Area

Average Velocity

Average Velocity is defined as the mean of all different velocities.

Symbol: v_avg

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Average Velocity

Other formulas in Kinematics of Flow category

Go Resultant velocity for two velocity components

V = \sqrt{(u^{2}) + (v^{2})}

Go Depth of Parabola formed at Free Surface of Water

Z = \frac{(ω^{2}) \cdot ({r 1}^{2})}{2 \cdot 9.81}

Go Angular Velocity of Vortex using Depth of Parabola

ω = \sqrt{\frac{Z \cdot 2 \cdot 9.81}{{r 1}^{2}}}

Go Height or depth of paraboloid for volume of air

h c = (\frac{D^{2}}{2 \cdot ({r 1}^{2})}) \cdot (L - H i)

How to Evaluate Rate of flow or discharge?

Rate of flow or discharge evaluator uses Rate of Flow = Cross-Sectional Area*Average Velocity to evaluate the Rate of Flow, The Rate of flow or discharge formula is defined as the quantity of fluid flowing per second through a section of pipe or a channel. Rate of Flow is denoted by Q symbol.

How to evaluate Rate of flow or discharge using this online evaluator? To use this online evaluator for Rate of flow or discharge, enter Cross-Sectional Area (A_cs) & Average Velocity (v_avg) and hit the calculate button.

FAQs on Rate of flow or discharge

What is the formula to find Rate of flow or discharge?

The formula of Rate of flow or discharge is expressed as Rate of Flow = Cross-Sectional Area*Average Velocity. Here is an example- 9.9E+11 = 0.013*76.5.

How to calculate Rate of flow or discharge?

With Cross-Sectional Area (A_cs) & Average Velocity (v_avg) we can find Rate of flow or discharge using the formula - Rate of Flow = Cross-Sectional Area*Average Velocity.

Can the Rate of flow or discharge be negative?

Yes, the Rate of flow or discharge, measured in Volumetric Flow Rate can be negative.

Which unit is used to measure Rate of flow or discharge?

Rate of flow or discharge is usually measured using the Cubic Centimeter per Second[cm³/s] for Volumetric Flow Rate. Cubic Meter per Second[cm³/s], Cubic Meter per Day[cm³/s], Cubic Meter per Hour[cm³/s] are the few other units in which Rate of flow or discharge can be measured.

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