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Critical Section Factor Formula

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Section Factor is ratio of normal to critical channel depth. Check FAQs

Z = \frac{Q}{\sqrt{[g]}}

Z - Section Factor?Q - Discharge of Channel?[g] - Gravitational acceleration on Earth?

Critical Section Factor Example

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Here is how the Critical Section Factor equation looks like with Values.

Here is how the Critical Section Factor equation looks like with Units.

Here is how the Critical Section Factor equation looks like.

4.4706 = \frac{14}{\sqrt{9.8066}}

4.4706m^2.5 = \frac{14m³/s}{\sqrt{9.8066m/s²}}

4.4706 = \frac{14}{\sqrt{9.8066}}

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Critical Section Factor Solution

Follow our step by step solution on how to calculate Critical Section Factor?

FIRST Step Consider the formula

Z = \frac{Q}{\sqrt{[g]}}

Next Step Substitute values of Variables

∴

Z = \frac{14m³/s}{\sqrt{[g]}}

Next Step Substitute values of Constants

∴

Z = \frac{14m³/s}{\sqrt{9.8066m/s²}}

Next Step Prepare to Evaluate

∴

Z = \frac{14}{\sqrt{9.8066}}

Next Step Evaluate

∴

Z = 4.47061939493482m^2.5

LAST Step Rounding Answer

∴

Z = 4.4706m^2.5

Critical Section Factor Formula Elements

Variables

Constants

Functions

Section Factor

Section Factor is ratio of normal to critical channel depth.

Symbol: Z

Measurement: Section FactorUnit: m^2.5

Note: Value can be positive or negative.

Formulas to find Section Factor

Discharge of Channel

Discharge of Channel is the rate of flow of a liquid.

Symbol: Q

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Discharge of Channel

Gravitational acceleration on Earth

Gravitational acceleration on Earth means that the velocity of an object in free fall will increase by 9.8 m/s2 every second.

Symbol: [g]

Value: 9.80665 m/s²

sqrt

A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.

Syntax: sqrt(Number)

Other formulas in Critical Flow and its Computation category

Go Discharge given Critical Section Factor

Q = Z \cdot \sqrt{[g]}

Go Critical Depth for Rectangular Channel

h r = {(\frac{q^{2}}{[g]})}^{\frac{1}{3}}

Go Discharge per unit Width given Critical Depth for Rectangular Channel

q = {(({h r}^{3}) \cdot [g])}^{\frac{1}{2}}

Go Critical Energy for Rectangular Channel

E r = 1.5 \cdot h r

How to Evaluate Critical Section Factor?

Critical Section Factor evaluator uses Section Factor = Discharge of Channel/sqrt([g]) to evaluate the Section Factor, The Critical Section Factor is defined as proportionality constant for discharge and specific energy in channel section. Section Factor is denoted by Z symbol.

How to evaluate Critical Section Factor using this online evaluator? To use this online evaluator for Critical Section Factor, enter Discharge of Channel (Q) and hit the calculate button.

FAQs on Critical Section Factor

What is the formula to find Critical Section Factor?

The formula of Critical Section Factor is expressed as Section Factor = Discharge of Channel/sqrt([g]). Here is an example- 4.470619 = 14/sqrt([g]).

How to calculate Critical Section Factor?

With Discharge of Channel (Q) we can find Critical Section Factor using the formula - Section Factor = Discharge of Channel/sqrt([g]). This formula also uses Gravitational acceleration on Earth constant(s) and Square Root (sqrt) function(s).

Can the Critical Section Factor be negative?

Yes, the Critical Section Factor, measured in Section Factor can be negative.

Which unit is used to measure Critical Section Factor?

Critical Section Factor is usually measured using the Meter^2.5[m^2.5] for Section Factor. Yard^2.5[m^2.5], Foot^2.5[m^2.5], Decimeter^2.5[m^2.5] are the few other units in which Critical Section Factor can be measured.

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