Velocity of Flow in Pipe by Manning Formula given Diameter Calculator

✖Manning Coefficient is dimensionless and varies depending on the type of channel or surface through which water flows.ⓘ Manning Coefficient [n]			+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%

✖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.ⓘ Velocity of Flow in Pipe by Manning Formula given Diameter [v_f]

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Velocity of Flow in Pipe by Manning Formula given Diameter Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

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.
Manning Coefficient - Manning Coefficient is dimensionless and varies depending on the type of channel or surface through which water flows.
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

Manning Coefficient: 0.009 --> 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

v_f = (0.397/n)*(D_p^(2/3))*(S^(1/2)) --> (0.397/0.009)*(0.4^(2/3))*(0.25^(1/2))

Evaluating ... ...

v_f = 11.9735977087575

STEP 3: Convert Result to Output's Unit

11.9735977087575 Meter per Second --> No Conversion Required

FINAL ANSWER

11.9735977087575 ≈ 11.9736 Meter per Second <-- Flow Velocity

(Calculation completed in 00.005 seconds)

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< Manning's Formula Calculators

Velocity of Flow in Pipe by Manning Formula

LaTeX 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

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

Manning's Coefficient given Velocity of Flow

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

Hydraulic Gradient given Velocity of Flow in Pipe by Manning Formula

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

Velocity of Flow in Pipe by Manning Formula given Diameter Formula

LaTeX Go

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

What is Flow Velocity ?

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.

How to Calculate Velocity of Flow in Pipe by Manning Formula given Diameter?

Velocity of Flow in Pipe by Manning Formula given Diameter calculator uses Flow Velocity = (0.397/Manning Coefficient)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2)) to calculate the Flow Velocity, The Velocity of Flow in Pipe by Manning Formula given Diameter is defined as the value of velocity of flow when we have prior information of diameter of pipe andother parameters used. Flow Velocity is denoted by v_f symbol.

How to calculate Velocity of Flow in Pipe by Manning Formula given Diameter using this online calculator? To use this online calculator for Velocity of Flow in Pipe by Manning Formula given Diameter, enter Manning Coefficient (n), Diameter of Pipe (D_p) & Hydraulic Gradient (S) and hit the calculate button. Here is how the Velocity of Flow in Pipe by Manning Formula given Diameter calculation can be explained with given input values -> 11.9736 = (0.397/0.009)*(0.4^(2/3))*(0.25^(1/2)).

FAQ

What is Velocity of Flow in Pipe by Manning Formula given Diameter?

The Velocity of Flow in Pipe by Manning Formula given Diameter is defined as the value of velocity of flow when we have prior information of diameter of pipe andother parameters used and is represented as v_f = (0.397/n)*(D_p^(2/3))*(S^(1/2)) or Flow Velocity = (0.397/Manning Coefficient)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2)). Manning Coefficient is dimensionless and varies depending on the type of channel or surface through which water flows, 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 Velocity of Flow in Pipe by Manning Formula given Diameter?

The Velocity of Flow in Pipe by Manning Formula given Diameter is defined as the value of velocity of flow when we have prior information of diameter of pipe andother parameters used is calculated using Flow Velocity = (0.397/Manning Coefficient)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2)). To calculate Velocity of Flow in Pipe by Manning Formula given Diameter, you need Manning Coefficient (n), Diameter of Pipe (D_p) & Hydraulic Gradient (S). With our tool, you need to enter the respective value for Manning Coefficient, 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 Flow Velocity?

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

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

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