Engineering

How to Calculate and Solve for Mean Free Path | Transport Phenomena

Last Updated on September 29, 2021

The image above represents mean free path.

To compute for mean free path, two essential parameters are needed and these parameters are Pipe Diameter (D) and Number of Molecules (m).

The formula for calculating mean free path:

λ = 1 / √(2)π.D²m

Where:

λ = Mean Free Path
D = Pipe Diameter
m = Number of Molecules

Let’s solve an example;
Find the mean free path when the pipe diameter is 35 and the number of molecules is 7.

This implies that;

D = Pipe Diameter = 35
m = Number of Molecules = 7

λ = 1 / √(2)π.D²m
λ = 1 / √(2)π..(35)²(7)
λ = 1 / (4.442).(1225)(7)
λ = 1 / (4.442).(8575)
λ = 1 / 38097.721
λ = 0.0000262

Therefore, the mean free path is 0.0000262.

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the mean free path.

To get the answer and workings of the mean free path using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

Web – https://www.nickzom.org/calculator-plus

To get access to the professional version via web, you need to register and subscribe to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator

Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.

Now, Click on Transport Phenomena under Materials and Metallurgical

Now, Click on Mean Free Path under Transport Phenomena

The screenshot below displays the page or activity to enter your values, to get the answer for the mean free path according to the respective parameter which is the Pipe Diameter (D) and Number of Molecules (m).

Now, enter the values appropriately and accordingly for the parameters as required by the Pipe Diameter (D) is 35 and Number of Molecules (m) is 7.

Finally, Click on Calculate

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the mean free path and presents the formula, workings and steps too.

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