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

✖The Roughness Coefficient for Running Full accounts for uniform surface resistance affecting flow velocity and friction loss.ⓘ Roughness Coefficient for Running Full [N]			+10% -10%
✖The Velocity Ratio compares the flow velocity in a partially full pipe to that in a fully running pipe.ⓘ Velocity Ratio [νsV_ratio]			+10% -10%
✖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.ⓘ Hydraulic Mean Depth Ratio [R]			+10% -10%

✖Roughness Coefficient Partially Full means roughness coefficient of pipe while running partially full.ⓘ Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio [n_p]

⎘ Copy

👎

Formula

✖

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

Formula

n p = \frac{N}{\frac{νsV ratio}{{(R)}^{\frac{1}{6}}}}

Example

0.896685 = \frac{0.74}{\frac{0.76}{{(0.61)}^{\frac{1}{6}}}}

Calculator

LaTeX

Reset

👍

Download Roughness Coefficient Formulas PDF PDF Image

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

STEP 0: Pre-Calculation Summary

Formula Used

Roughness Coefficient Partially Full = Roughness Coefficient for Running Full/((Velocity Ratio)/(Hydraulic Mean Depth Ratio)^(1/6))
n_p = N/((νsV_ratio)/(R)^(1/6))
This formula uses 4 Variables

Variables Used

Roughness Coefficient Partially Full - Roughness Coefficient Partially Full means roughness coefficient of pipe while running partially full.
Roughness Coefficient for Running Full - The Roughness Coefficient for Running Full accounts for uniform surface resistance affecting flow velocity and friction loss.
Velocity Ratio - The Velocity Ratio compares the flow velocity in a partially full pipe to that in a fully running pipe.
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.

STEP 1: Convert Input(s) to Base Unit

Roughness Coefficient for Running Full: 0.74 --> No Conversion Required
Velocity Ratio: 0.76 --> No Conversion Required
Hydraulic Mean Depth Ratio: 0.61 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

n_p = N/((νsV_ratio)/(R)^(1/6)) --> 0.74/((0.76)/(0.61)^(1/6))

Evaluating ... ...

n_p = 0.896684714658829

STEP 3: Convert Result to Output's Unit

0.896684714658829 --> No Conversion Required

FINAL ANSWER

0.896684714658829 ≈ 0.896685 <-- Roughness Coefficient Partially Full

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Civil » Environmental Engineering » Hydraulic Designs of Sewers and S. W. Drain Sections » Roughness Coefficient » Roughness Coefficient for Partial Flow » Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio

Credits

Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2100+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

Ishita Goyal has verified this Calculator and 2600+ more calculators!

< Roughness Coefficient for Partial Flow Calculators

Roughness Coefficient for Partial Flow given Self Cleansing Velocity

Go 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)))

Roughness Coefficient for Partial Flow given Velocity Ratio

Go 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)))

Roughness Coefficient for Partial Flow given Hydraulic Mean Depth Ratio

Go 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))

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

Go Roughness Coefficient Partially Full = Roughness Coefficient for Running Full/((Velocity Ratio)/(Hydraulic Mean Depth Ratio)^(1/6))

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

Roughness Coefficient Partially Full = Roughness Coefficient for Running Full/((Velocity Ratio)/(Hydraulic Mean Depth Ratio)^(1/6))
n_p = N/((νsV_ratio)/(R)^(1/6))

What is roughness coefficient ?

The roughness coefficient, often represented as Manning's n, quantifies the resistance exerted by the interior surface of a channel or pipe on the fluid flow. It accounts for factors like surface texture, material, and any irregularities. This coefficient is crucial in hydraulic calculations, as it directly affects flow velocity, discharge, and energy loss. Accurate determination of the roughness coefficient is essential for designing efficient water conveyance systems and predicting flow behavior.

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

Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio calculator uses Roughness Coefficient Partially Full = Roughness Coefficient for Running Full/((Velocity Ratio)/(Hydraulic Mean Depth Ratio)^(1/6)) to calculate 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 n_p symbol.

How to calculate Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio using this online calculator? To use this online calculator for Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio, enter Roughness Coefficient for Running Full (N), Velocity Ratio (νsV_ratio) & Hydraulic Mean Depth Ratio (R) and hit the calculate button. Here is how the Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio calculation can be explained with given input values -> 0.34074 = 0.74/((velocity_ratio_)/(0.61)^(1/6)).

FAQ

What is Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio?

Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio is defined for flow calculations, accounting for varied wetting of pipe surfaces and is represented as n_p = N/((νsV_ratio)/(R)^(1/6)) or Roughness Coefficient Partially Full = Roughness Coefficient for Running Full/((Velocity Ratio)/(Hydraulic Mean Depth Ratio)^(1/6)). The Roughness Coefficient for Running Full accounts for uniform surface resistance affecting flow velocity and friction loss, The Velocity Ratio compares the flow velocity in a partially full pipe to that in a fully running pipe & 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.

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

Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio is defined for flow calculations, accounting for varied wetting of pipe surfaces is calculated using Roughness Coefficient Partially Full = Roughness Coefficient for Running Full/((Velocity Ratio)/(Hydraulic Mean Depth Ratio)^(1/6)). To calculate Roughness Coefficient for Partial Flow given Hydraulic Mean Depth and Velocity Ratio, you need Roughness Coefficient for Running Full (N), Velocity Ratio (νsV_ratio) & Hydraulic Mean Depth Ratio (R). With our tool, you need to enter the respective value for Roughness Coefficient for Running Full, Velocity Ratio & Hydraulic Mean Depth Ratio and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Roughness Coefficient Partially Full?

In this formula, Roughness Coefficient Partially Full uses Roughness Coefficient for Running Full, Velocity Ratio & Hydraulic Mean Depth Ratio. We can use 3 other way(s) to calculate the same, which is/are as follows -

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)))
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)))
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))

Home

FREE PDFs

🔍 Search