Friction Factor given Reynolds Number Calculator

✖The Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities.ⓘ Reynolds Number [Re]

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✖Darcy Friction Factor is denoted by f. Its value depends on the flow's Reynolds number Re and on the pipe's relative roughness ε / D. It can be obtained from Moody's chart.ⓘ Friction Factor given Reynolds Number [f]

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Formula

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Friction Factor given Reynolds Number

Formula

`"f" = 64/"Re"`

Example

`"5"=64/"12.8"`

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Friction Factor given Reynolds Number Solution

STEP 0: Pre-Calculation Summary

Formula Used

Darcy Friction Factor = 64/Reynolds Number
f = 64/Re
This formula uses 2 Variables

Variables Used

Darcy Friction Factor - Darcy Friction Factor is denoted by f. Its value depends on the flow's Reynolds number Re and on the pipe's relative roughness ε / D. It can be obtained from Moody's chart.
Reynolds Number - The Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities.

STEP 1: Convert Input(s) to Base Unit

Reynolds Number: 12.8 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f = 64/Re --> 64/12.8

Evaluating ... ...

f = 5

STEP 3: Convert Result to Output's Unit

5 --> No Conversion Required

FINAL ANSWER

5 <-- Darcy Friction Factor

(Calculation completed in 00.004 seconds)

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Created by Rithik Agrawal

National Institute of Technology Karnataka (NITK), Surathkal

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< 5 Friction Factor Calculators

Friction Factor when Head Loss is due to Frictional Resistance

Go Darcy Friction Factor = (Head Loss due to Friction*2*[g]*Diameter of Pipe)/(Length of Pipe*Mean Velocity^2)

Friction Factor

Go Darcy Friction Factor = 64*Dynamic Viscosity/(Density of Fluid*Mean Velocity*Diameter of Pipe)

Friction Factor given Shear Stress and Density

Go Darcy Friction Factor = (8*Shear Stress)/(Mean Velocity*Mean Velocity*Density of Fluid)

Friction Factor given Shear Velocity

Go Darcy Friction Factor = 8*(Shear Velocity/Mean Velocity)^2

Friction Factor given Reynolds Number

Go Darcy Friction Factor = 64/Reynolds Number

Friction Factor given Reynolds Number Formula

Darcy Friction Factor = 64/Reynolds Number
f = 64/Re

What is Friction Factor ?

In fluid dynamics, the Darcy friction factor formulae are equations that allow the calculation of the Darcy friction factor, a dimensionless quantity used in the Darcy–Weisbach equation, for the description of friction losses in pipe flow as well as open-channel flow.

How to Calculate Friction Factor given Reynolds Number?

Friction Factor given Reynolds Number calculator uses Darcy Friction Factor = 64/Reynolds Number to calculate the Darcy Friction Factor, The Friction Factor given Reynolds Number formula is defined as resistance multiplier for finding frictional resistance. Darcy Friction Factor is denoted by f symbol.

How to calculate Friction Factor given Reynolds Number using this online calculator? To use this online calculator for Friction Factor given Reynolds Number, enter Reynolds Number (Re) and hit the calculate button. Here is how the Friction Factor given Reynolds Number calculation can be explained with given input values -> 5 = 64/12.8.

FAQ

What is Friction Factor given Reynolds Number?

The Friction Factor given Reynolds Number formula is defined as resistance multiplier for finding frictional resistance and is represented as f = 64/Re or Darcy Friction Factor = 64/Reynolds Number. The Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities.

How to calculate Friction Factor given Reynolds Number?

The Friction Factor given Reynolds Number formula is defined as resistance multiplier for finding frictional resistance is calculated using Darcy Friction Factor = 64/Reynolds Number. To calculate Friction Factor given Reynolds Number, you need Reynolds Number (Re). With our tool, you need to enter the respective value for Reynolds Number 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 Darcy Friction Factor?

In this formula, Darcy Friction Factor uses Reynolds Number. We can use 4 other way(s) to calculate the same, which is/are as follows -

Darcy Friction Factor = (Head Loss due to Friction*2*[g]*Diameter of Pipe)/(Length of Pipe*Mean Velocity^2)
Darcy Friction Factor = 64*Dynamic Viscosity/(Density of Fluid*Mean Velocity*Diameter of Pipe)
Darcy Friction Factor = (8*Shear Stress)/(Mean Velocity*Mean Velocity*Density of Fluid)
Darcy Friction Factor = 8*(Shear Velocity/Mean Velocity)^2

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