Flow Velocity using Manning's formula Solution

STEP 0: Pre-Calculation Summary
Formula Used
Flow Velocity = (Conversion factor*Hydraulic Radius^(2/3)*Energy loss^(1/2))/Roughness Coefficient of Conduit Surface
Vf = (C*rH^(2/3)*S^(1/2))/nc
This formula uses 5 Variables
Variables Used
Flow Velocity - (Measured in Meter per Second) - Flow Velocity is the velocity of the flow of any fluid.
Conversion factor - Conversion factor is to account for change from metric units used in development of the formula.
Hydraulic Radius - (Measured in Meter) - Hydraulic Radius is the ratio of the cross-sectional area of a channel or pipe in which a fluid is flowing to the wet perimeter of the conduit.
Energy loss - (Measured in Joule) - Energy loss is the loss of energy of flowing water.
Roughness Coefficient of Conduit Surface - Roughness Coefficient of Conduit Surface is coefficient dependent on roughness of conduit surface.
STEP 1: Convert Input(s) to Base Unit
Conversion factor: 1.486 --> No Conversion Required
Hydraulic Radius: 0.33 Meter --> 0.33 Meter No Conversion Required
Energy loss: 2 Joule --> 2 Joule No Conversion Required
Roughness Coefficient of Conduit Surface: 0.017 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Vf = (C*rH^(2/3)*S^(1/2))/nc --> (1.486*0.33^(2/3)*2^(1/2))/0.017
Evaluating ... ...
Vf = 59.0329082377811
STEP 3: Convert Result to Output's Unit
59.0329082377811 Meter per Second --> No Conversion Required
FINAL ANSWER
59.0329082377811 59.03291 Meter per Second <-- Flow Velocity
(Calculation completed in 00.004 seconds)

Credits

Created by Mridul Sharma
Indian Institute of Information Technology (IIIT), Bhopal
Mridul Sharma has created this Calculator and 200+ more calculators!
Verified by Ishita Goyal
Meerut Institute of Engineering and Technology (MIET), Meerut
Ishita Goyal has verified this Calculator and 2600+ more calculators!

8 Flow velocity in straight sewers Calculators

Conversion Factor given Flow Velocity
Go Conversion factor = ((Flow Velocity*Roughness Coefficient of Conduit Surface)/((Energy loss^(1/2))*Hydraulic Radius^(2/3)))
Hydraulic Radius given Flow Velocity
Go Hydraulic Radius = ((Flow Velocity*Roughness Coefficient of Conduit Surface)/(Conversion factor*Energy loss^(1/2)))^(3/2)
Roughness Coefficient using Flow Velocity
Go Roughness Coefficient of Conduit Surface = (Conversion factor*Hydraulic Radius^(2/3)*Energy loss^(1/2))/Flow Velocity
Flow Velocity using Manning's formula
Go Flow Velocity = (Conversion factor*Hydraulic Radius^(2/3)*Energy loss^(1/2))/Roughness Coefficient of Conduit Surface
Energy Loss given Flow Velocity
Go Energy loss = ((Flow Velocity*Roughness Coefficient of Conduit Surface)/(Conversion factor*Hydraulic Radius^(2/3)))^2
Velocity using Water Flow Equation
Go Flow Velocity = Water Flow/Cross-Sectional Area
Area given Water Flow Equation
Go Cross-Sectional Area = Water Flow/Flow Velocity
Water Flow Equation
Go Water Flow = Cross-Sectional Area*Flow Velocity

Flow Velocity using Manning's formula Formula

Flow Velocity = (Conversion factor*Hydraulic Radius^(2/3)*Energy loss^(1/2))/Roughness Coefficient of Conduit Surface
Vf = (C*rH^(2/3)*S^(1/2))/nc

How do you use Manning's equation?

One common application of the equation is to compute the full pipe capacity for a given diameter and pipe slope. This is done with the Manning equation by setting the slope equal to the slope of the pipe, and then computing the resulting flow rate for a given pipe diameter.

How to Calculate Flow Velocity using Manning's formula?

Flow Velocity using Manning's formula calculator uses Flow Velocity = (Conversion factor*Hydraulic Radius^(2/3)*Energy loss^(1/2))/Roughness Coefficient of Conduit Surface to calculate the Flow Velocity, The Flow velocity using Manning's formula formula calculates the rate of flow of water when we have a prior info of the roughness coefficient of the pipe material used , energy loss due to it and hydraulic radius. Flow Velocity is denoted by Vf symbol.

How to calculate Flow Velocity using Manning's formula using this online calculator? To use this online calculator for Flow Velocity using Manning's formula, enter Conversion factor (C), Hydraulic Radius (rH), Energy loss (S) & Roughness Coefficient of Conduit Surface (nc) and hit the calculate button. Here is how the Flow Velocity using Manning's formula calculation can be explained with given input values -> 59.03291 = (1.486*0.33^(2/3)*2^(1/2))/0.017.

FAQ

What is Flow Velocity using Manning's formula?
The Flow velocity using Manning's formula formula calculates the rate of flow of water when we have a prior info of the roughness coefficient of the pipe material used , energy loss due to it and hydraulic radius and is represented as Vf = (C*rH^(2/3)*S^(1/2))/nc or Flow Velocity = (Conversion factor*Hydraulic Radius^(2/3)*Energy loss^(1/2))/Roughness Coefficient of Conduit Surface. Conversion factor is to account for change from metric units used in development of the formula, Hydraulic Radius is the ratio of the cross-sectional area of a channel or pipe in which a fluid is flowing to the wet perimeter of the conduit, Energy loss is the loss of energy of flowing water & Roughness Coefficient of Conduit Surface is coefficient dependent on roughness of conduit surface.
How to calculate Flow Velocity using Manning's formula?
The Flow velocity using Manning's formula formula calculates the rate of flow of water when we have a prior info of the roughness coefficient of the pipe material used , energy loss due to it and hydraulic radius is calculated using Flow Velocity = (Conversion factor*Hydraulic Radius^(2/3)*Energy loss^(1/2))/Roughness Coefficient of Conduit Surface. To calculate Flow Velocity using Manning's formula, you need Conversion factor (C), Hydraulic Radius (rH), Energy loss (S) & Roughness Coefficient of Conduit Surface (nc). With our tool, you need to enter the respective value for Conversion factor, Hydraulic Radius, Energy loss & Roughness Coefficient of Conduit Surface 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 Conversion factor, Hydraulic Radius, Energy loss & Roughness Coefficient of Conduit Surface. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Flow Velocity = Water Flow/Cross-Sectional Area
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!