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Critical velocity considering flow in open channels Formula

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Critical velocity for flow in open channel is the greatest velocity with which a fluid can flow through a given conduit without becoming turbulent. Check FAQs

V c = \sqrt{[g] \cdot h c}

V_c - Critical Velocity for Flow in Open Channel?h_c - Critical Depth for Flow in Open Channel?[g] - Gravitational acceleration on Earth?

Critical velocity considering flow in open channels Example

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Here is how the Critical velocity considering flow in open channels equation looks like with Values.

Here is how the Critical velocity considering flow in open channels equation looks like with Units.

Here is how the Critical velocity considering flow in open channels equation looks like.

1.9531 = \sqrt{9.8066 \cdot 0.389}

1.9531m/s = \sqrt{9.8066m/s² \cdot 0.389m}

1.9531 = \sqrt{9.8066 \cdot 0.389}

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Critical velocity considering flow in open channels Solution

Follow our step by step solution on how to calculate Critical velocity considering flow in open channels?

FIRST Step Consider the formula

V c = \sqrt{[g] \cdot h c}

Next Step Substitute values of Variables

∴

V c = \sqrt{[g] \cdot 0.389m}

Next Step Substitute values of Constants

∴

V c = \sqrt{9.8066m/s² \cdot 0.389m}

Next Step Prepare to Evaluate

∴

V c = \sqrt{9.8066 \cdot 0.389}

Next Step Evaluate

∴

V c = 1.95314793346536m/s

LAST Step Rounding Answer

∴

V c = 1.9531m/s

Critical velocity considering flow in open channels Formula Elements

Variables

Constants

Functions

Critical Velocity for Flow in Open Channel

Critical velocity for flow in open channel is the greatest velocity with which a fluid can flow through a given conduit without becoming turbulent.

Symbol: V_c

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Critical Velocity for Flow in Open Channel

Critical Depth for Flow in Open Channel

Critical depth for flow in open channel is defined as the depth of flow where energy is at a minimum for a particular discharge in the open channel.

Symbol: h_c

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Critical Depth for Flow in Open 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 Flow in Open Channels category

Go Velocity of Chezy's formula

v = C \cdot \sqrt{m \cdot i}

Go Chezy's constant considering velocity

C = \frac{v}{\sqrt{m \cdot i}}

Go Hydraulic mean depth using Chezy's formula

m = (\frac{1}{i}) \cdot {(\frac{v}{C})}^{2}

Go Chezy's constant considering Bazin formula

C = \frac{157.6}{1.81 + (\frac{K}{\sqrt{m}})}

How to Evaluate Critical velocity considering flow in open channels?

Critical velocity considering flow in open channels evaluator uses Critical Velocity for Flow in Open Channel = sqrt([g]*Critical Depth for Flow in Open Channel) to evaluate the Critical Velocity for Flow in Open Channel, The Critical velocity considering flow in open channels formula is known with the square root of the gravity and critical depth. Critical Velocity for Flow in Open Channel is denoted by V_c symbol.

How to evaluate Critical velocity considering flow in open channels using this online evaluator? To use this online evaluator for Critical velocity considering flow in open channels, enter Critical Depth for Flow in Open Channel (h_c) and hit the calculate button.

FAQs on Critical velocity considering flow in open channels

What is the formula to find Critical velocity considering flow in open channels?

The formula of Critical velocity considering flow in open channels is expressed as Critical Velocity for Flow in Open Channel = sqrt([g]*Critical Depth for Flow in Open Channel). Here is an example- 1.953148 = sqrt([g]*0.389).

How to calculate Critical velocity considering flow in open channels?

With Critical Depth for Flow in Open Channel (h_c) we can find Critical velocity considering flow in open channels using the formula - Critical Velocity for Flow in Open Channel = sqrt([g]*Critical Depth for Flow in Open Channel). This formula also uses Gravitational acceleration on Earth constant(s) and Square Root (sqrt) function(s).

Can the Critical velocity considering flow in open channels be negative?

No, the Critical velocity considering flow in open channels, measured in Speed cannot be negative.

Which unit is used to measure Critical velocity considering flow in open channels?

Critical velocity considering flow in open channels is usually measured using the Meter per Second[m/s] for Speed. Meter per Minute[m/s], Meter per Hour[m/s], Kilometer per Hour[m/s] are the few other units in which Critical velocity considering flow in open channels can be measured.

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