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Coefficient of velocity Formula

GoCoefficient of velocity for horizontal and vertical distance Formula

GoCoefficient of Velocity given Head Loss Formula

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The Coefficient of Velocity is the ratio of actual velocity to theoretical velocity. Check FAQs

C v = \frac{v a}{V th}

C_v - Coefficient of Velocity?v_a - Actual Velocity?V_th - Theoretical Velocity?

Coefficient of velocity Example

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Here is how the Coefficient of velocity equation looks like with Values.

Here is how the Coefficient of velocity equation looks like with Units.

Here is how the Coefficient of velocity equation looks like.

0.8889 = \frac{8}{9}

0.8889 = \frac{8m/s}{9m/s}

0.8889 = \frac{8}{9}

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Coefficient of velocity Solution

Follow our step by step solution on how to calculate Coefficient of velocity?

FIRST Step Consider the formula

C v = \frac{v a}{V th}

Next Step Substitute values of Variables

∴

C v = \frac{8m/s}{9m/s}

Next Step Prepare to Evaluate

∴

C v = \frac{8}{9}

Next Step Evaluate

∴

C v = 0.888888888888889

LAST Step Rounding Answer

∴

C v = 0.8889

Coefficient of velocity Formula Elements

Variables

Coefficient of Velocity

The Coefficient of Velocity is the ratio of actual velocity to theoretical velocity.

Symbol: C_v

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Coefficient of Velocity

Actual Velocity

Actual velocity is the velocity at which a microscopic particle of dust would be traveling if it were in the air stream.

Symbol: v_a

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Actual Velocity

Theoretical Velocity

Theoretical velocity is defined as the velocity that is calculated theoretically.

Symbol: V_th

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Theoretical Velocity

Other Formulas to find Coefficient of Velocity

Go Coefficient of velocity for horizontal and vertical distance

C v = \frac{R}{\sqrt{4 \cdot V \cdot H}}

Go Coefficient of Velocity given Head Loss

C v = \sqrt{1 - (\frac{h f}{H})}

Other formulas in Velocity and Time category

Go Theoretical velocity

v = \sqrt{2 \cdot 9.81 \cdot H p}

Go Velocity of liquid at C-C for Hc, Ha, and H

V i = \sqrt{2 \cdot 9.81 \cdot (H a + H c - H AP)}

Go Time of Emptying Tank through Orifice at Bottom

t total = \frac{2 \cdot A T \cdot ((\sqrt{H i}) - (\sqrt{H f}))}{C d \cdot a \cdot \sqrt{2 \cdot 9.81}}

Go Time of Emptying Hemispherical Tank

t total = \frac{π \cdot (((\frac{4}{3}) \cdot R t \cdot (({H i}^{1.5}) - ({H f}^{1.5}))) - (0.4 \cdot (({H i}^{\frac{5}{2}}) - {(H f)}^{\frac{5}{2}})))}{C d \cdot a \cdot (\sqrt{2 \cdot 9.81})}

How to Evaluate Coefficient of velocity?

Coefficient of velocity evaluator uses Coefficient of Velocity = Actual Velocity/Theoretical Velocity to evaluate the Coefficient of Velocity, The Coefficient of velocity formula is defined as the ratio between the actual velocity of the jet at the vena-contracta to the theoretical velocity at the jet. Coefficient of Velocity is denoted by C_v symbol.

How to evaluate Coefficient of velocity using this online evaluator? To use this online evaluator for Coefficient of velocity, enter Actual Velocity (v_a) & Theoretical Velocity (V_th) and hit the calculate button.

FAQs on Coefficient of velocity

What is the formula to find Coefficient of velocity?

The formula of Coefficient of velocity is expressed as Coefficient of Velocity = Actual Velocity/Theoretical Velocity. Here is an example- 0.285714 = 8/9.

How to calculate Coefficient of velocity?

With Actual Velocity (v_a) & Theoretical Velocity (V_th) we can find Coefficient of velocity using the formula - Coefficient of Velocity = Actual Velocity/Theoretical Velocity.

What are the other ways to Calculate Coefficient of Velocity?

Here are the different ways to Calculate Coefficient of Velocity-

Coefficient of Velocity=Horizontal Distance/(sqrt(4*Vertical Distance*Head of the Liquid))
Coefficient of Velocity=sqrt(1-(Head Loss/Head of the Liquid))

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