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Roughness Coefficient Partially Full means roughness coefficient of pipe while running partially full. Check FAQs
np=NνsVratio(R)16
np - Roughness Coefficient Partially Full?N - Roughness Coefficient for Running Full?νsVratio - Velocity Ratio?R - Hydraulic Mean Depth Ratio?

Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio Example

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Here is how the Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio equation looks like with Values.

Here is how the Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio equation looks like with Units.

Here is how the Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio equation looks like.

0.8967Edit=0.74Edit0.76Edit(0.61Edit)16
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Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio Solution

Follow our step by step solution on how to calculate Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio?

FIRST Step Consider the formula
np=NνsVratio(R)16
Next Step Substitute values of Variables
np=0.740.76(0.61)16
Next Step Prepare to Evaluate
np=0.740.76(0.61)16
Next Step Evaluate
np=0.896684714658829
LAST Step Rounding Answer
np=0.8967

Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio Formula Elements

Variables
Roughness Coefficient Partially Full
Roughness Coefficient Partially Full means roughness coefficient of pipe while running partially full.
Symbol: np
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Roughness Coefficient for Running Full
The Roughness Coefficient for Running Full accounts for uniform surface resistance affecting flow velocity and friction loss.
Symbol: N
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Velocity Ratio
The Velocity Ratio compares the flow velocity in a partially full pipe to that in a fully running pipe.
Symbol: νsVratio
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Hydraulic Mean Depth Ratio
The Hydraulic Mean Depth Ratio refers to the ratio of the hydraulic mean depth for a partially full pipe to that when it's running full.
Symbol: R
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other Formulas to find Roughness Coefficient Partially Full

​Go Roughness Coefficient for Partial Flow given Velocity Ratio
np=NνsVratio(rpfRrf)23S
​Go Roughness Coefficient for Partial Flow given Self Cleansing Velocity
np=NVsV(rpfRrf)23S
​Go Roughness Coefficient for Partial Flow given Hydraulic Mean Depth Ratio
np=NVsV(R)16
​Go Roughness Coefficient for Partial Flow given Discharge Ratio
np=NqsQratio(aA)(rpfRrf)16

How to Evaluate Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio?

Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio evaluator uses Roughness Coefficient Partially Full = Roughness Coefficient for Running Full/((Velocity Ratio)/(Hydraulic Mean Depth Ratio)^(1/6)) to evaluate the Roughness Coefficient Partially Full, Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio is defined for flow calculations, accounting for varied wetting of pipe surfaces. Roughness Coefficient Partially Full is denoted by np symbol.

How to evaluate Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio using this online evaluator? To use this online evaluator for Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio, enter Roughness Coefficient for Running Full (N), Velocity Ratio (νsVratio) & Hydraulic Mean Depth Ratio (R) and hit the calculate button.

FAQs on Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio

What is the formula to find Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio?
The formula of Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio is expressed as Roughness Coefficient Partially Full = Roughness Coefficient for Running Full/((Velocity Ratio)/(Hydraulic Mean Depth Ratio)^(1/6)). Here is an example- 0.34074 = 0.74/((velocity_ratio_)/(0.61)^(1/6)).
How to calculate Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio?
With Roughness Coefficient for Running Full (N), Velocity Ratio (νsVratio) & Hydraulic Mean Depth Ratio (R) we can find Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio using the formula - Roughness Coefficient Partially Full = Roughness Coefficient for Running Full/((Velocity Ratio)/(Hydraulic Mean Depth Ratio)^(1/6)).
What are the other ways to Calculate Roughness Coefficient Partially Full?
Here are the different ways to Calculate Roughness Coefficient Partially Full-
  • Roughness Coefficient Partially Full=Roughness Coefficient for Running Full/(Velocity Ratio/((Hydraulic Mean Depth for Partially Full/Hydraulic Mean Depth while Running Full)^(2/3)*sqrt(Bed Slope Ratio)))OpenImg
  • Roughness Coefficient Partially Full=Roughness Coefficient for Running Full/((Velocity in a Partially Running Sewer/Velocity While Running Full)/((Hydraulic Mean Depth for Partially Full/Hydraulic Mean Depth while Running Full)^(2/3)*sqrt(Bed Slope Ratio)))OpenImg
  • Roughness Coefficient Partially Full=Roughness Coefficient for Running Full/((Velocity in a Partially Running Sewer/Velocity While Running Full)/(Hydraulic Mean Depth Ratio)^(1/6))OpenImg
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