View source for OpenFOAM-version-7/C2/Installing-OpenFOAM-in-Ubuntu-Linux/English

'''Title of the script''': Installing OpenFOAM in Ubuntu

'''Author''': Ashley Melvin

'''Keywords''': OpenFOAM, ParaView, Linux, Ubuntu 18.04, video tutorial



{| border = "1"
|- 
|| '''Visual Cue'''
|| '''Narration'''
|- 
|| Slide: Opening Slide
|| Welcome to this tutorial on '''Installing OpenFOAM in Ubuntu Linux OS'''.
|- 
|| Slide: Learning Objective



|| In this tutorial, we will learn how to install:
* '''OpenFOAM''' version 7 and
* '''ParaView''' version 5.6.0
|- 
|| Slide: System Specifications
|| This tutorial is recorded using:
* '''Ubuntu Linux''' OS version 18.04
* A working '''Internet''' connection and
* A '''text editor'''
|- 
|| Only Narration
|| We will install '''OpenFOAM''' using the '''terminal'''.
|-
|| Highlight '''Terminal''' on the machine
|| Open a '''terminal''' by pressing '''Ctrl, Alt and T''' keys together.


Make sure that you are connected to the '''Internet'''.
|- 
|| [Terminal]


sudo sh -c "wget -O - http://dl.openfoam.org/gpg.key | apt-key add -"
|| A public key needs to be added to the '''repository'''. 


This key enables the '''repository''' to verify '''OpenFOAM package signatures.'''


To do this, in the '''Terminal''', carefully type the following '''command''' and press '''Enter'''.
|- 
|| [Terminal]


Type the password >> Press Enter.
|| The machine will ask for the '''system password'''.


Type the '''password''' and press '''Enter'''.
|- 
|| Only Narration
|| Let me clear the screen.
|- 
|| [Terminal]


sudo add-apt-repository http://dl.openfoam.org/ubuntu
|| Now type the following '''command''' and press '''Enter'''.


This will enable '''apt''' to search for '''dl.openfoam.org''' in the list of '''software repositories'''. 
|-
|| Only Narration
|| Here onwards, please remember to press the '''Enter''' key after typing each '''command'''.

Let me clear the screen. 
|- 
|| [Terminal]


sudo apt-get update
|| Now type the following '''command''' to update the '''apt package''' list.
|- 
|| [Terminal]


sudo apt-get -y install openfoam7
|| The '''repository''' is updated.


Next let us install '''OpenFOAM '''version 7.


To do so, type the following '''command''' in the '''terminal'''.
|- 
|| [Terminal]


Point to the installation process
|| The installation may take some time depending upon your internet speed.
|- 
|| [Terminal]


Point to the installation complete message
|| The installation is done now.
|- 
|| Only Narration
|| Let’s now configure the system to use the installed '''OpenFOAM package'''.


Let me clear the screen.
|- 
|| [Terminal]


gedit ~/.bashrc
|| Open the '''.bashrc''' file located in the '''Home''' directory in a '''text editor'''.


To do so, type the following '''command'''.


I will be using the '''gedit text editor'''. 


You may use any '''text editor''' of your choice.
|- 
|| [Text Editor]


source /opt/openfoam7/etc/bashrc
|| Scroll down to the end of the document.


Add the following line of '''code''' as shown.


This will enable us to execute the '''OpenFOAM commands''' via '''terminal'''.
|- 
|| [Text Editor] 


Ctrl + S and close the window
|| Save and close the file.
|- 
|| Highlight new Terminal on the machine
|| Since the changes to '''.bashrc''' file is yet to be registered, we need to open a new '''terminal'''.


To open a '''new terminal''', press '''Ctrl, Alt and T''' keys together.
|- 
|| [Terminal]


simpleFoam -help
|| In the new '''terminal''', type the following '''command'''.
|- 
|| [Terminal]


‘Usage’ message
|| A message with the list of options is displayed on the '''terminal'''.


This confirms that '''OpenFOAM 7''' is properly installed.
|- 
|| Only Narration 
|| Let me clear the screen.
|- 
|| Only Narration
|| Let us now check the installation of '''ParaView'''.
|- 
|| [Terminal] 


paraview
|| Type '''paraview''' in the '''terminal'''.
|- 
|| Highlight '''ParaView '''window
|| The '''ParaView''' interface opens in a new window.


Close the start-up screen.


This confirms that '''ParaView''' is properly installed.
|- 
|| [ParaView] 


Click on close
|| '''Close''' this window.
|- 
|| Only Narration
|| The installation of '''OpenFOAM 7''' is now complete.


We can access '''OpenFOAM''' '''commands''' from the '''terminal '''now.
|- 
|| Only Narration
|| With this we have come to the end of the tutorial.


Let’s summarize.
|- 
|| Slide: Summary
|| In this tutorial, we have learnt how to:
* Install '''OpenFOAM''' version 7
* Install '''ParaView''' version 5.6.0 and
* Verify the installation
|-
|| Slide: About the Spoken Tutorial Project
|| The video at the following link summarises the Spoken Tutorial project.


Please download and watch it.
|-
|| Slide: Spoken Tutorial Workshops
|| We conduct workshops using Spoken Tutorials and give certificates.


Please contact us.
|-
|| Slide: Spoken Tutorial Forum
|| 
* Do you have questions in THIS Spoken Tutorial? 
* Please visit this site.
* Choose the minute and second where you have the question
* Explain your question briefly 
* Someone from our team will answer them 
* You will have to register on this website to ask questions.

|-
|| Slide: FOSSEE Forum
||
* Do you have any general/technical questions?
* Please visit the forum given in the link.

|-
|| Slide: FOSSEE Case Study Project
|| 
* The FOSSEE team coordinates solving feasible CFD problems of reasonable complexity using OpenFOAM.
* We give honorarium and certificates to those who do this.
* For more details, please visit these sites.

|-
|| Slide: Spoken Tutorial
|| The Spoken Tutorial project is supported by MHRD, Govt. of India.

The script for this tutorial is contributed by Ashley.

And this is Padmini from IIT Bombay signing off.

Thanks for joining.
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