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Proportionate Velocity is ratio of velocity when water is partially full to velocity when water is totally full. Check FAQs
Pv=(rpfRrf)23
Pv - Proportionate Velocity?rpf - Hydraulic Mean Depth for Partially Full?Rrf - Hydraulic Mean Depth while Running Full?

Proportionate Velocity when Roughness Coefficient does not Vary with Depth Example

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Here is how the Proportionate Velocity when Roughness Coefficient does not Vary with Depth equation looks like with Values.

Here is how the Proportionate Velocity when Roughness Coefficient does not Vary with Depth equation looks like with Units.

Here is how the Proportionate Velocity when Roughness Coefficient does not Vary with Depth equation looks like.

0.7235Edit=(3.2Edit5.2Edit)23
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Proportionate Velocity when Roughness Coefficient does not Vary with Depth Solution

Follow our step by step solution on how to calculate Proportionate Velocity when Roughness Coefficient does not Vary with Depth?

FIRST Step Consider the formula
Pv=(rpfRrf)23
Next Step Substitute values of Variables
Pv=(3.2m5.2m)23
Next Step Prepare to Evaluate
Pv=(3.25.2)23
Next Step Evaluate
Pv=0.723487596221772
LAST Step Rounding Answer
Pv=0.7235

Proportionate Velocity when Roughness Coefficient does not Vary with Depth Formula Elements

Variables
Proportionate Velocity
Proportionate Velocity is ratio of velocity when water is partially full to velocity when water is totally full.
Symbol: Pv
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Hydraulic Mean Depth for Partially Full
Hydraulic Mean Depth for Partially Full refers to the cross-sectional area of flow divided by the wetted perimeter, adapting to varying water levels.
Symbol: rpf
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Hydraulic Mean Depth while Running Full
Hydraulic Mean Depth while Running Full refers to the ratio of the pipe's full cross-sectional area to its full wetted perimeter.
Symbol: Rrf
Measurement: LengthUnit: m
Note: Value should be greater than 0.

Other Formulas to find Proportionate Velocity

​Go Proportionate Velocity given Roughness Coefficient
Pv=(Nnp)(rpfrpf)23
​Go Proportionate Velocity given Central Angle
Pv=(1-(360π180)sin(central)2πcentral)23
​Go Proportionate Velocity given Velocity while Running Partially Full
Pv=VsV

Other formulas in Proportionate Velocity category

​Go Velocity while Running Full given Proportionate Velocity
V=VsPv
​Go Roughness Coefficient while Running Full given Proportionate Velocity
N=Pvnp(rpfRrf)23
​Go Hydraulic Mean Depth while Running Full given Proportionate Velocity
Rrf=((rpf)23Pv)32

How to Evaluate Proportionate Velocity when Roughness Coefficient does not Vary with Depth?

Proportionate Velocity when Roughness Coefficient does not Vary with Depth evaluator uses Proportionate Velocity = (Hydraulic Mean Depth for Partially Full/Hydraulic Mean Depth while Running Full)^(2/3) to evaluate the Proportionate Velocity, The Proportionate Velocity when Roughness Coefficient does not Vary with Depth calculates the proportionate velocity when we have prior information of other parameters. Proportionate Velocity is denoted by Pv symbol.

How to evaluate Proportionate Velocity when Roughness Coefficient does not Vary with Depth using this online evaluator? To use this online evaluator for Proportionate Velocity when Roughness Coefficient does not Vary with Depth, enter Hydraulic Mean Depth for Partially Full (rpf) & Hydraulic Mean Depth while Running Full (Rrf) and hit the calculate button.

FAQs on Proportionate Velocity when Roughness Coefficient does not Vary with Depth

What is the formula to find Proportionate Velocity when Roughness Coefficient does not Vary with Depth?
The formula of Proportionate Velocity when Roughness Coefficient does not Vary with Depth is expressed as Proportionate Velocity = (Hydraulic Mean Depth for Partially Full/Hydraulic Mean Depth while Running Full)^(2/3). Here is an example- 0.723488 = (3.2/5.2)^(2/3).
How to calculate Proportionate Velocity when Roughness Coefficient does not Vary with Depth?
With Hydraulic Mean Depth for Partially Full (rpf) & Hydraulic Mean Depth while Running Full (Rrf) we can find Proportionate Velocity when Roughness Coefficient does not Vary with Depth using the formula - Proportionate Velocity = (Hydraulic Mean Depth for Partially Full/Hydraulic Mean Depth while Running Full)^(2/3).
What are the other ways to Calculate Proportionate Velocity?
Here are the different ways to Calculate Proportionate Velocity-
  • Proportionate Velocity=(Roughness Coefficient for Running Full/Roughness Coefficient Partially Full)*(Hydraulic Mean Depth for Partially Full/Hydraulic Mean Depth for Partially Full)^(2/3)OpenImg
  • Proportionate Velocity=(1-((360*pi/180)*sin(Central Angle))/(2*pi*Central Angle))^(2/3)OpenImg
  • Proportionate Velocity=Velocity in a Partially Running Sewer/Velocity While Running FullOpenImg
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