Manning's Coefficient given Diameter of Pipe Calculator

✖Flow Velocity refers to the speed at which a fluid, such as a liquid or gas, moves through a particular area within a given time.ⓘ Flow Velocity [v_f]			+10% -10%
✖Diameter of Pipe is the diameter of the pipe in which the liquid is flowing.ⓘ Diameter of Pipe [D_p]			+10% -10%
✖Hydraulic gradient is a specific measurement of liquid pressure above a vertical datum.ⓘ Hydraulic Gradient [S]			+10% -10%

✖Manning coefficient is a constant given by manning and depend on type of pipe.ⓘ Manning's Coefficient given Diameter of Pipe [n]

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Formula

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Manning's Coefficient given Diameter of Pipe

Formula

`"n" = (0.397/"v"_{"f"})*("D"_{"p"}^(2/3))*("S"^(1/2))`

Example

`"0.00901"=(0.397/"11.96m/s")*(("0.4m")^(2/3))*(("0.25")^(1/2))`

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Manning's Coefficient given Diameter of Pipe Solution

STEP 0: Pre-Calculation Summary

Formula Used

Manning coefficient = (0.397/Flow Velocity)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2))
n = (0.397/v_f)*(D_p^(2/3))*(S^(1/2))
This formula uses 4 Variables

Variables Used

Manning coefficient - Manning coefficient is a constant given by manning and depend on type of pipe.
Flow Velocity - (Measured in Meter per Second) - Flow Velocity refers to the speed at which a fluid, such as a liquid or gas, moves through a particular area within a given time.
Diameter of Pipe - (Measured in Meter) - Diameter of Pipe is the diameter of the pipe in which the liquid is flowing.
Hydraulic Gradient - Hydraulic gradient is a specific measurement of liquid pressure above a vertical datum.

STEP 1: Convert Input(s) to Base Unit

Flow Velocity: 11.96 Meter per Second --> 11.96 Meter per Second No Conversion Required
Diameter of Pipe: 0.4 Meter --> 0.4 Meter No Conversion Required
Hydraulic Gradient: 0.25 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

n = (0.397/v_f)*(D_p^(2/3))*(S^(1/2)) --> (0.397/11.96)*(0.4^(2/3))*(0.25^(1/2))

Evaluating ... ...

n = 0.00901023238953326

STEP 3: Convert Result to Output's Unit

0.00901023238953326 --> No Conversion Required

FINAL ANSWER

0.00901023238953326 ≈ 0.00901 <-- Manning coefficient

(Calculation completed in 00.004 seconds)

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< 18 Manning's Formula Calculators

Velocity of Flow in Pipe given Head loss by Manning Formula

Go Flow Velocity = sqrt((Head Loss*0.157*Diameter of Pipe^(4/3))/(Length of Pipe*Manning coefficient^2))

Manning's Coefficient given Head loss by Manning Formula

Go Manning coefficient = sqrt((Head Loss*0.157*Diameter of Pipe^(4/3))/(Length of Pipe*Flow Velocity^2))

Velocity of Flow in Pipe by Manning Formula given Radius of Pipe

Go Flow Velocity = sqrt((Head Loss*0.157*(2*Pipe Radius)^(4/3))/(Length of Pipe*Manning coefficient^2))

Manning's Coefficient by Manning Formula given Radius of Pipe

Go Manning coefficient = sqrt((Head Loss*0.157*(2*Pipe Radius)^(4/3))/(Length of Pipe*Flow Velocity^2))

Radius of Pipe given Head loss by Manning Formula

Go Pipe Radius = ((Length of Pipe*(Manning coefficient*Flow Velocity)^2)/(0.157*Head Loss*(2)^(4/3)))^(3/4)

Diameter of Pipe given Head loss by Manning Formula

Go Diameter of Pipe = ((Length of Pipe*(Manning coefficient*Flow Velocity)^2)/(0.157*Head Loss))^(3/4)

Head loss by Manning Formula

Go Head Loss = (Length of Pipe*(Manning coefficient*Flow Velocity)^2)/(0.157*(Diameter of Pipe)^(4/3))

Head loss by Manning Formula given Radius of Pipe

Go Head Loss = (Length of Pipe*(Manning coefficient*Flow Velocity)^2)/(0.157*(2*Pipe Radius)^(4/3))

Length of Pipe given Head loss by Manning Formula

Go Length of Pipe = (Head Loss*0.157*Diameter of Pipe^(4/3))/(Manning coefficient*Flow Velocity)^2

Length of Pipe by Manning Formula given Radius of Pipe

Go Length of Pipe = (Head Loss*0.157*(2*Pipe Radius)^(4/3))/(Manning coefficient*Flow Velocity)^2

Diameter of Pipe given Velocity of Flow in Pipe by Manning Formula

Go Diameter of Pipe = ((Flow Velocity*Manning coefficient)/(0.397*(Hydraulic Gradient^(1/2))))^(3/2)

Velocity of Flow in Pipe by Manning Formula given Diameter

Go Flow Velocity = (0.397/Manning coefficient)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2))

Manning's Coefficient given Diameter of Pipe

Go Manning coefficient = (0.397/Flow Velocity)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2))

Hydraulic Gradient by Manning Formula given Diameter

Go Hydraulic Gradient = ((Flow Velocity*Manning coefficient)/(0.397*(Diameter of Pipe^(2/3))))^2

Velocity of Flow in Pipe by Manning Formula

Go Flow Velocity = (1/Manning coefficient)*(Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2))

Radius of Pipe given Velocity of Flow in Pipe by Manning Formula

Go Hydraulic Radius = ((Flow Velocity*Manning coefficient)/(Hydraulic Gradient^(1/2)))^(3/2)

Manning's Coefficient given Velocity of Flow

Go Manning coefficient = ((Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2)))/Flow Velocity

Hydraulic Gradient given Velocity of Flow in Pipe by Manning Formula

Go Hydraulic Gradient = ((Flow Velocity*Manning coefficient)/(Hydraulic Radius^(2/3)))^2

Manning's Coefficient given Diameter of Pipe Formula

Manning coefficient = (0.397/Flow Velocity)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2))
n = (0.397/v_f)*(D_p^(2/3))*(S^(1/2))

What is Manning's Coefficient ?

Manning's coefficient is a measure of the roughness of a channel or conduit in hydraulic engineering, influencing the calculation of flow velocity in open channel flow equations.

How to Calculate Manning's Coefficient given Diameter of Pipe?

Manning's Coefficient given Diameter of Pipe calculator uses Manning coefficient = (0.397/Flow Velocity)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2)) to calculate the Manning coefficient, The Manning's Coefficient given Diameter of Pipe calculates the value of manning's coefficient when we have prior information of other parameters used. Manning coefficient is denoted by n symbol.

How to calculate Manning's Coefficient given Diameter of Pipe using this online calculator? To use this online calculator for Manning's Coefficient given Diameter of Pipe, enter Flow Velocity (v_f), Diameter of Pipe (D_p) & Hydraulic Gradient (S) and hit the calculate button. Here is how the Manning's Coefficient given Diameter of Pipe calculation can be explained with given input values -> 0.00901 = (0.397/11.96)*(0.4^(2/3))*(0.25^(1/2)).

FAQ

What is Manning's Coefficient given Diameter of Pipe?

The Manning's Coefficient given Diameter of Pipe calculates the value of manning's coefficient when we have prior information of other parameters used and is represented as n = (0.397/v_f)*(D_p^(2/3))*(S^(1/2)) or Manning coefficient = (0.397/Flow Velocity)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2)). Flow Velocity refers to the speed at which a fluid, such as a liquid or gas, moves through a particular area within a given time, Diameter of Pipe is the diameter of the pipe in which the liquid is flowing & Hydraulic gradient is a specific measurement of liquid pressure above a vertical datum.

How to calculate Manning's Coefficient given Diameter of Pipe?

The Manning's Coefficient given Diameter of Pipe calculates the value of manning's coefficient when we have prior information of other parameters used is calculated using Manning coefficient = (0.397/Flow Velocity)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2)). To calculate Manning's Coefficient given Diameter of Pipe, you need Flow Velocity (v_f), Diameter of Pipe (D_p) & Hydraulic Gradient (S). With our tool, you need to enter the respective value for Flow Velocity, Diameter of Pipe & Hydraulic Gradient 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 Manning coefficient?

In this formula, Manning coefficient uses Flow Velocity, Diameter of Pipe & Hydraulic Gradient. We can use 3 other way(s) to calculate the same, which is/are as follows -

Manning coefficient = ((Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2)))/Flow Velocity
Manning coefficient = sqrt((Head Loss*0.157*Diameter of Pipe^(4/3))/(Length of Pipe*Flow Velocity^2))
Manning coefficient = sqrt((Head Loss*0.157*(2*Pipe Radius)^(4/3))/(Length of Pipe*Flow Velocity^2))

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