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Discharge at Structure Formula

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The Flow Discharge refers to the volume of water passing through a particular cross-section of a river or stream per unit of time. It is typically measured in (m³/s) or cubic feet per second (cfs). Check FAQs

Q f = k \cdot (H^{n system})

Q_f - Flow Discharge?k - System Constant k?H - Head over Weir?n_system - System Constant n?

Discharge at Structure Example

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Here is how the Discharge at Structure equation looks like with Values.

Here is how the Discharge at Structure equation looks like with Units.

Here is how the Discharge at Structure equation looks like.

35.9632 = 2 \cdot (3^{2.63})

35.9632m³/s = 2 \cdot ({3m}^{2.63})

35.9632 = 2 \cdot (3^{2.63})

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Discharge at Structure Solution

Follow our step by step solution on how to calculate Discharge at Structure?

FIRST Step Consider the formula

Q f = k \cdot (H^{n system})

Next Step Substitute values of Variables

∴

Q f = 2 \cdot ({3m}^{2.63})

Next Step Prepare to Evaluate

∴

Q f = 2 \cdot (3^{2.63})

Next Step Evaluate

∴

Q f = 35.9632469805084m³/s

LAST Step Rounding Answer

∴

Q f = 35.9632m³/s

Discharge at Structure Formula Elements

Variables

Flow Discharge

The Flow Discharge refers to the volume of water passing through a particular cross-section of a river or stream per unit of time. It is typically measured in (m³/s) or cubic feet per second (cfs).

Symbol: Q_f

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Flow Discharge

System Constant k

System Constant k for measuring the discharge rates in flow-measuring structures.

Symbol: k

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find System Constant k

Head over Weir

Head over Weir is the stream or river to raise the water level or divert its flow.

Symbol: H

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Head over Weir

System Constant n

System Constant n in the discharge rate of streamflow measurement.

Symbol: n_system

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find System Constant n

Other formulas in Flow Measuring Structures category

Go Head over Weir given Discharge

H = {(\frac{Q f}{k})}^{\frac{1}{n system}}

Go Submerged Flow over Weir using Villemonte Formula

Q s = Q 1 \cdot {(1 - {(\frac{H 2}{H 1})}^{n head})}^{0.385}

Go Free Flow Discharge under Head using Submerged Flow over Weir

Q 1 = \frac{Q s}{{(1 - {(\frac{H 2}{H 1})}^{n head})}^{0.385}}

How to Evaluate Discharge at Structure?

Discharge at Structure evaluator uses Flow Discharge = System Constant k*(Head over Weir^(System Constant n)) to evaluate the Flow Discharge, The Discharge at Structure formula is defined as an overflow structure placed across the flow. The edge over which the flow occurs is called the crest of the weir. Flow Discharge is denoted by Q_f symbol.

How to evaluate Discharge at Structure using this online evaluator? To use this online evaluator for Discharge at Structure, enter System Constant k (k), Head over Weir (H) & System Constant n (n_system) and hit the calculate button.

FAQs on Discharge at Structure

What is the formula to find Discharge at Structure?

The formula of Discharge at Structure is expressed as Flow Discharge = System Constant k*(Head over Weir^(System Constant n)). Here is an example- 35.96325 = 2*(3^(2.63)).

How to calculate Discharge at Structure?

With System Constant k (k), Head over Weir (H) & System Constant n (n_system) we can find Discharge at Structure using the formula - Flow Discharge = System Constant k*(Head over Weir^(System Constant n)).

Can the Discharge at Structure be negative?

No, the Discharge at Structure, measured in Volumetric Flow Rate cannot be negative.

Which unit is used to measure Discharge at Structure?

Discharge at Structure 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 Discharge at Structure can be measured.

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