Proportionate Velocity when Roughness Coefficient does not Vary with Depth Calculator

✖Hydraulic mean depth while running partially full.ⓘ Hydraulic mean depth [r]			+10% -10%
✖Hydraulic mean depth while running full means hmd of pipe while running full.ⓘ Hydraulic mean depth while running full [R]			+10% -10%

✖Proportionate velocity is ratio of velocity when water is partially full to velocity when water is totally full.ⓘ Proportionate Velocity when Roughness Coefficient does not Vary with Depth [P_v]

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Proportionate Velocity when Roughness Coefficient does not Vary with Depth

Formula

`"P"_{"v"} = ("r"/"R")^(2/3)`

Example

`"0.711379"=("3m"/"5m")^(2/3)`

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Proportionate Velocity when Roughness Coefficient does not Vary with Depth Solution

STEP 0: Pre-Calculation Summary

Formula Used

Proportionate velocity = (Hydraulic mean depth/Hydraulic mean depth while running full)^(2/3)
P_v = (r/R)^(2/3)
This formula uses 3 Variables

Variables Used

Proportionate velocity - Proportionate velocity is ratio of velocity when water is partially full to velocity when water is totally full.
Hydraulic mean depth - (Measured in Meter) - Hydraulic mean depth while running partially full.
Hydraulic mean depth while running full - (Measured in Meter) - Hydraulic mean depth while running full means hmd of pipe while running full.

STEP 1: Convert Input(s) to Base Unit

Hydraulic mean depth: 3 Meter --> 3 Meter No Conversion Required
Hydraulic mean depth while running full: 5 Meter --> 5 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_v = (r/R)^(2/3) --> (3/5)^(2/3)

Evaluating ... ...

P_v = 0.711378660898013

STEP 3: Convert Result to Output's Unit

0.711378660898013 --> No Conversion Required

FINAL ANSWER

0.711378660898013 ≈ 0.711379 <-- Proportionate velocity

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Environmental Engineering » Hydraulic Designs of Sewers and S. W. Drain Sections » Hydraulic Characteristics of Circular Sewers Sections » Circular Sewer Section Running Full » Proportionate Velocity » Proportionate Velocity when Roughness Coefficient does not Vary with Depth

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Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

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< 7 Proportionate Velocity Calculators

Roughness Coefficient while Running Full given Proportionate Velocity

Go Roughness coefficient full = (Proportionate velocity*Roughness coefficient partially full)/(Hydraulic mean depth/Hydraulic mean depth while running full)^(2/3)

Proportionate Velocity given Roughness Coefficient

Go Proportionate velocity = (Roughness coefficient full/Roughness coefficient partially full)*(Hydraulic mean depth/Hydraulic mean depth)^(2/3)

Proportionate Velocity given Central Angle

Go Proportionate velocity = (1-((360*pi/180)*sin(Central Angle))/(2*pi*Central Angle))^(2/3)

Hydraulic Mean Depth while Running Full given Proportionate Velocity

Go Hydraulic mean depth while running full = ((Hydraulic mean depth)^(2/3)/Proportionate velocity)^(3/2)

Proportionate Velocity when Roughness Coefficient does not Vary with Depth

Go Proportionate velocity = (Hydraulic mean depth/Hydraulic mean depth while running full)^(2/3)

Proportionate Velocity given Velocity while Running Partially Full

Go Proportionate velocity = Velocity while running partially full/Velocity while running full

Velocity while Running Full given Proportionate Velocity

Go Velocity while running full = Velocity while running partially full/Proportionate velocity

Proportionate Velocity when Roughness Coefficient does not Vary with Depth Formula

Proportionate velocity = (Hydraulic mean depth/Hydraulic mean depth while running full)^(2/3)
P_v = (r/R)^(2/3)

What is hydraulic depth ?

Hydraulic depth, abbreviated as dh, also called hydraulic mean depth, is the area cross-section of water in a pipe or channel divided by the wetting perimeter.

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

Proportionate Velocity when Roughness Coefficient does not Vary with Depth calculator uses Proportionate velocity = (Hydraulic mean depth/Hydraulic mean depth while running full)^(2/3) to calculate 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 P_v symbol.

How to calculate Proportionate Velocity when Roughness Coefficient does not Vary with Depth using this online calculator? To use this online calculator for Proportionate Velocity when Roughness Coefficient does not Vary with Depth, enter Hydraulic mean depth (r) & Hydraulic mean depth while running full (R) and hit the calculate button. Here is how the Proportionate Velocity when Roughness Coefficient does not Vary with Depth calculation can be explained with given input values -> 0.711379 = (3/5)^(2/3).

FAQ

What is Proportionate Velocity when Roughness Coefficient does not Vary with Depth?

The Proportionate Velocity when Roughness Coefficient does not Vary with Depth calculates the proportionate velocity when we have prior information of other parameters and is represented as P_v = (r/R)^(2/3) or Proportionate velocity = (Hydraulic mean depth/Hydraulic mean depth while running full)^(2/3). Hydraulic mean depth while running partially full & Hydraulic mean depth while running full means hmd of pipe while running full.

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

The Proportionate Velocity when Roughness Coefficient does not Vary with Depth calculates the proportionate velocity when we have prior information of other parameters is calculated using Proportionate velocity = (Hydraulic mean depth/Hydraulic mean depth while running full)^(2/3). To calculate Proportionate Velocity when Roughness Coefficient does not Vary with Depth, you need Hydraulic mean depth (r) & Hydraulic mean depth while running full (R). With our tool, you need to enter the respective value for Hydraulic mean depth & Hydraulic mean depth while running full 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 Proportionate velocity?

In this formula, Proportionate velocity uses Hydraulic mean depth & Hydraulic mean depth while running full. We can use 3 other way(s) to calculate the same, which is/are as follows -

Proportionate velocity = (Roughness coefficient full/Roughness coefficient partially full)*(Hydraulic mean depth/Hydraulic mean depth)^(2/3)
Proportionate velocity = (1-((360*pi/180)*sin(Central Angle))/(2*pi*Central Angle))^(2/3)
Proportionate velocity = Velocity while running partially full/Velocity while running full

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