OpenFOAM/C2/Installing-Running/English

Tutorial; Installing and Running OpenFOAM and Paraview

Script and Narration : Rahul Joshi

Keywords: Video tutorial,CFD,Installing OpenFOAM,Paraview.

Visual Cue	Narration
Slide 1:	Hello and welcome to the spoken tutorial on Installing and running OpenFOAM and paraView.
Slide 2: Learning Objectives	In this tutorial I will show you how to install and run OpenFOAM Paraview and How to solve a lid driven cavity.
Slide 3: System Requirement	To record this tutorial I am using Linux Operating system Ubuntu 10.04 OpenFOAM version 2.1.0 ParaView version 3.12.0 Note that OpenFOAM does not run on Windows platform. Also Note OpenFOAM v 2.1.0 is compatible with linux version 10.04 and above.
Slide 4 Prerequisites	To practice this tutorial you should have some basic knowledge of Computational Fluid Dynamics. And Linux Commands.
Slide 5 About OpenFOAM	Let me introduce you to OpenFOAM
Open source software	It is an Open Source Computational Fluid Dynamics Software.
Wide range of solvers 2d as well as 3d problems	It contains a wide range of solvers for solving CFD problems of 2dimensional as well as 3dimensionals.
Slide 6: About paraView	Now let me introduce you to Paraview: It is used for visualizing results obtained in OpenFOAM.
Slide 7:	OpenFOAM and paraView can also be installed through Synaptic package manager
Demo: Synaptic Package Manager	For Synaptic Package Manager go to System > Administration > Synaptic Package Manager
Enter your system password	Type your password.
Search box – type OpenFOAM	In the Search Box type OpenFOAM
	you can see openfoam as well as paraView.
Mark both Openfoam and paraview	Mark both of them for installation
	Click on mark and then Apply
	Installation may take some time.
	OpenFOAM and Paraview are installed.
Slide 7 :	For more details on Synaptic Package Manager please visit our website on this URL : http://www.spoken-tutorials.org
Slide 8 :	Alternately you can also install OpenFOAM and paraView from openfoam website on this url: http://www.openfoam.com/download
Open browser	Let me open up the browser
	In the browser URL type : http://www.openfoam.com/download Press Enter
Scroll down and go to ubuntu deb pack installation	Scroll Down and go to Ubuntu Deb pack Let me zoom this
	Go to Ubuntu deb pack installation Click on it
	Let me zoom out Scroll down
Copy the first line to insert in command trminal paste it in command terminal	From the first point of installation copy the command line and paste it in the terminal window
Open command terminal Press Ctrl+Alt+t on keyboard Application > Accessories > Terminal	To open up a the terminal window press Ctrl,Alt and t keys simultaneously on your keyboard or go to Application > Accessories > Terminal
paste it in command terminal	Open up a terminal window Now copy this command line and paste it in the terminal window
Replace lsb_release -cs by the ubuntu version name	Note that in place of 'lsb_release -cs' replace it with the name of Linux version you are using
	Switch back to the browser Scroll up
Replace it by lucid for ubuntu 10.04	I will replace this by lucid Press enter
Installation is incomplete Follow steps for installation	Note that Installation here is incomplete if you follow the steps in the sequence 1-2-3-4 you will be done through with the installation.
	I have already installed OpenFOAM through Synaptic Pacakage Manage some while ago
Configure the software and test its working	Now we need to configure the installed software
Edit the bash file	To do this we need to edit the bash file
In command terminal type gedit ~/.bashrc	Open a new command terminal. In the command terminal type : 'gedit ~/.bashrc' This opens up the bash file,
	Let me drag this to the capture area scroll down to the bottom of the bash file
Browser window	Now switch back to the browser Scroll down and go to user configration
Look at the second point copy the source line paste it at bottom of bash file	Look at the second point Copy this line And paste it at the botttom of the bash file
	Save it and Close the bash file.
	Now we need to test the installed application
Open new terminal window	To do this open up a new command terminal terminal Let me drag this to the capture area
Type in the terminal window	In the command terminal type 'icoFoam (Note that F here is capital) space -(dash) help Press enter
A mesage in the command terminal	A usage message will appear. You are now ready to start with OpenFoam
Set up working directory	Now let me show you how to set up a working directory.
	Create a project or a user directory by the name run
New terminal window	Open a new command terminal Let me drag this to the capture area again
Terminal window : mkdir -p $FOAM_RUN	In the Command Terminal type : mkdir (space) -p (space) $FOAM_RUN (Please note FOAM and RUN are in capital) Press Enter
Copy the tutorial directory	Copy the tutorial directory from openfoam distribution to run directory
In terminal type : cp (space) -r (space) $FOAM_TUTORIALS (space) $FOAM_RUN	By typing in the terminal cp (space) -r (space) $FOAM_TUTORIALS (space) $FOAM_RUN (Please note TUTORIAL and FOAM are in capital) and Press Enter
	Both the directories are now created.
To view the OpenFOAM directories	For view the directories go to Places > Home Folder > OpenFOAM.
Ttt-210, click on it	You can see ttt-210, Click on it
Click on run	Run and tutorials
	Close this Now let me switch back to the slides.
Installation from source code	If some errors occurs during downloading OpenFOAM and Paraview form Synaptic Package Manager or Ubuntu Deb pack from website then you can download and install Openfoam and paraview from the source pack installation
Download page of openfoam site	Go to the Download page of openfoam website Now let me zoom this
	Scroll down and click on Source Pack Installation
Go to packs	Now scroll down and Go to Packs
Download the two tar files	Download these 2 tar files and save them
Go to your home directory	After this go to your home directory
	To do this go to Places > home folder Let me drag this to the capture area
Create a folder put this as abc	In your home directory create a folder by any name of your choice Let me put this as abc
Copy the downloaded file in this folder	Copy the downloaded files in the folder you just created.
	To do this , copy these two tar file And paste it into the folder you just created
	Unzip or Untar these two files in the same folder. Right click > Extract here, this make take a couple of minutes
Open new terminal window In this go to your home folder	After this open a new command terminal In this go to your home folder
	type ls and press enter
	Now go to the same folder where you have untared the two tar files
Type abc	Now type cd ( space ) abc and press enter.
	To view the contents inside abc type ls and press enter
Go to the downlaod page	Now go back to the Download page of OpenFOAM website for source pack installation
Follow the steps given on the website	Follow the steps given below for ubuntu distribution for OpenFOAM and Paraview
Compile OpenFOAM and Paraview	We need to compile OpenFOAM and Paraview here
	It may take about 4 to 5 hours but this method always works .
Slide 9 : Diagram	Let us see how to Solve a problem in OpenFOAM with an example
	Let me take “Lid Driven Cavity” as an example.
Upper plate moves with a velocity and other plates are fixed	It is a 2D problem where the upper plate moves with a certain velocity and other three sides of the plate are fixed
Slide : Solver icoFoam	The type of Solver I am using here is for incompressible flow Called as -icofoam
Open a command terminal	Now Open a new command terminal again Let me drag this to the capture area
Path for lid driven cavity	Type the path for the lid driven cavity problem
Already set up in openfoam	Note that this problem has already been set up in OpenFOAM
In terminal window type run run directory	in the command terminal Type 'run' This will direct you to the run directory of OpenFOAM -Press Enter
Type cd tutorials	Now type cd (space) tutorial (Press Enter)
Type cd incompressible	cd (space) incompressible (Press Enter)
Type cd icoFoam	cd (space) icoFoam (Note that F here is capital) (Press Enter)
Type cd cavity	cd (space) cavity (Press Enter)
Type ls	To view the content inside cavity type ls and press enter
See the three folders	You can see three files : 0,constant and system
	Now we need to mesh the geometry
Meshing using blockMesh	Meshing can be done blockMesh utility of OpenFOAM
In the terminal window type : blockMesh	In the terminal window type blockMesh (Note here that M is capital) and Press Enter
	Meshing has been done
In terminal window type : icoFoam	Now run the solver 'icoFoam' by typing in the terminal icoFoam (Note here that F is capital) and Press Enter.
Look at the terminal window	The iterations running can be seen in the terminal window
Solving is done	Here we notice we have completed the solving point.
	To visualise these results let us open the paraview window.
In the terminal window type : paraFoam	To open paraView, type “paraFoam” in the terminal. (Note that 'F' is capital here) and press Enter
	This open the paraview window
Left hand side in object inspector menu Click APPLY	On the left hand side, In the object inspector menu, Click Apply to view the geometry
	You can see the Lid Driven Cavity
Boundary condition Go to mesh parts	To see the boundary conditions, scroll down the object inspector menu and go to Mesh Parts
Uncheck the internal mesh box	Uncheck Internel Mesh and click Apply
	The geometry disappear.
View the moving and fixed walls	Now for viewing the moving and fixedwalls Check both the boxes and click Apply
Check and uncheck the boxes	Now uncheck the Moving wall checkbox and click Apply
Hover over the paraview window	You can now see the fixedwalls and the moving wall which just now disappeared.
	Thus we are done with running openfoam and paraview
	In future we will come across more tutorials on solvers and post- procesing the OpenFOAM result
	Let me switch back to the slide
Slide : Summary	In this tutorial we learnt how to install: OpenFOAM and Paraview through Synaptic Package Manager and the website solved a lid driven cavity.
Slide : Assignment	As as Assignment, install OpenFOAM and Paraview This brings us to the end of the tutorial
Slide 8: About Spoken tutorials	Watch the video available at this URL: http://spoken-tutorial.org/What_is_a_Spoken_Tutorial It summarizes the Spoken Tutorial project. If you do not have good bandwidth, you can download and watch it.
Slide 9: About Spoken tutorials	The Spoken Tutorial Project Team -Conducts workshops using spoken tutorials -Gives certificates to those who pass an online test -For more details, please write to contact@spoken-tutorial.com
Slide 10: Acknowledgement	Spoken Tutorials are part of Talk to a Teacher project, It is supported by the National Mission on Education through ICT, MHRD, Government of India. More information on the same is available at the following URL link http://spoken-tutorial.org/NMEICT-Intro
About the contributor	This is Rahul Joshi from IIT BOMBAY signing off. Thanks for joining.

Contributors and Content Editors

Chandrika, Rahuljoshi