OpenFOAM/C2/Installing-Running/English-timed

Time	Narration
00:01	Hello and welcome to the spoken tutorial on Installing and running OpenFOAM and paraView.
00:08	In this tutorial, I will show you:
00:11	* How to install and run OpenFOAM , Paraview and
00:15	* How to solve a Lid driven cavity case.
00:19	To record this tutorial, I am using: Linux Operating system Ubuntu version 10.04
00:26	* OpenFOAM version 2.1.0 ParaView version 3.12.0
00:33	Note that OpenFOAM does not run on 'Windows' platform.
00:37	Also note, OpenFOAM v 2.1.0 is compatible with Ubuntu version 10.04 and above.
00:45	To practice this tutorial, you should have some basic knowledge of Computational Fluid Dynamics
00:52	and Linux commands.
00:55	Let me introduce you to OpenFOAM.
00:57	It is an Open Source Computational Fluid Dynamics Software.
01:02	It contains a wide range of solvers for solving CFD problems of 2 dimensions
01:08	as well as 3 dimensions.
01:11	Now, let me introduce you to Paraview.
01:14	It is used for visualizing the results obtained in OpenFOAM.
01:19	'OpenFOAM and paraView' can be installed through Synaptic package manager.
01:24	For Synaptic Package Manager, go to System > Administration > Synaptic Package Manager.
01:33	Type your password.
01:41	In the Search Box, type "OpenFOAM".
01:49	You can see openfoam as well as paraView.
01:54	Mark both of them for installation
02:06	and then click Apply to install.
02:12	The installation may take some time.
02:15	OpenFOAM and Paraview are installed.
02:21	For more details on Synaptic Package Manager,
02:25	please visit our website on this URL : http://www.spoken-tutorials.org
02:29	Alternately, you can also install OpenFOAM and paraView from the openfoam website on this url: http://www.openfoam.com/download
02:38	Let me open up the browser.
02:45	In the browser URL, type : http://www.openfoam.com/download. Press Enter.
03:10	Scroll-down and go to Ubuntu Deb pack. Let me zoom this.
03:23	Go to "Ubuntu Deb Pack Installation", click on it.
03:33	Let me zoom-out. Scroll-down and go to Installation.
03:40	From the first point of installation,
03:43	copy this command line and
03:46	paste it in the terminal window.
03:49	To open up a terminal window,
03:52	press Ctrl, Alt and t keys simultaneously on your keyboard or
03:59	go to Application > Accessories > Terminal.
04:06	Open up a terminal window.
04:10	Now, copy this command line and paste it in the terminal window.
04:20	Note that in place of "lsb_release -cs",
04:26	replace it with the name of the Linux version that you are using.
04:30	Switch back to the browser. Above Installation, you can see different Ubuntu versions and the code names.
04:40	As I am using Linux 10.04,
04:45	I will replace "lsb_release-cs" with "lucid".
04:53	Open up the terminal window.
04:55	I will replace this by "lucid". Press Enter.
05:04	Note that installation here is incomplete.
05:08	If you follow the steps in the
05:10	sequence 1-2-3 and 4, you will be done through installing OpenFoam and paraView.
05:19	I have already installed OpenFOAM and Paraview through Synaptic Pacakage Manager some while ago.
05:27	Now we need to configure the installed software.
05:31	To do this, we need to edit the bash file.
05: 35	Open a new command terminal.
05:39	In the command terminal, type : "gedit ~/.bashrc". Press Enter.
05:50	This opens up the bash file.
05:54	Let me drag this to the capture area, scroll-down to the bottom of the bash file.
06:05	Now, switch back to the browser.
06:09	Scroll-down and go to User Configration.
06:13	Look at the second point.
06:15	Copy this line and paste it at the bottom of the bash file.
06:25	Save it and close the bash file.
06:31	Now, we need to test the installed application.
06:35	To do this, open a new command terminal.
06:40	Let me drag this to the capture area.
06:49	In the command terminal, type: "icoFoam" (Note that 'F' here is capital) space -(dash) help
06:59	Press Enter.
07:03	A usage message will appear.
07:06	You are now ready to start with OpenFoam.
07:10	Now, let me show you how to set up a working directory.
07:14	Create a project or a user directory by the name "run".
07:21	Open a new command terminal. Let me drag this to the 'capture area' again.
07:36	In the Command Terminal, type : mkdir (space) -p (space) $FOAM_RUN( note that 'FOAM' and 'RUN' are in capital). Press Enter.
07:55	Copy the 'tutorial directory' from openfoam distribution to 'run directory'.
08:01	By typing on the terminal, cp (space) -r (space) $FOAM_TUTORIALS (space) $FOAM_RUN
08:18	(note that 'FOAM', 'TUTORIALs' and 'RUN' are in capital) and press Enter.
08:28	Both the directories are now created.
08:31	To view the directories, go to Places > 'Home' folder > 'OpenFOAM' folder.
08:40	You can see 'ttt-2.1.0', click on it.
08:44	Run and tutorials.
08:48	Close this.
08:51	Let me switch back to the slides.
08:56	If some errors occur during downloading OpenFOAM and Paraview
09:00	from Synaptic Package Manager or Ubuntu Debian pack from the website
09:05	then you can download and install OpenFoam and paraView from the source pack installation.
09:11	For source pack installation, go to the Download page of openfoam website.
09:18	Now, let me zoom this.
09:21	Scroll-down and go to"Source Pack Installation" . Now, click on this.
09:32	Now, scroll-down and go to Packs .
09:38	Download these 2 'tar' files and save them. I have already downloaded and saved these 2 'tar' files.
09:48	After this, go to your home directory.
09:51	To do this, go to Places > home folder.
09:56	Let me drag this to the capture area.
10:00	In your home directory, create a folder by a name of your choice.
10:09	Let me put this as 'abc'.
10:15	Copy the 2 downloaded files in the folder that you have just created.
10:20	To do this, copy these two tar files and paste that into the folder you have just created.
10:37	Unzip or Untar these two files in the same folder. Extract here, this may take a couple of minutes.
10:47	After this, open a new command terminal.
10:51	In this, go to your home folder.
10:54	Type 'ls' and press Enter.
11:00	Now, go to the same folder in which you have untared the 'tar' files.
11:06	Now type: cd (space) abc and press Enter.
11:13	Now, to view the contents inside 'abc', type 'ls' and press Enter.
11:24	Now, go back to the Download page of OpenFOAM website for source pack installation.
11:32	And follow the steps given below for ubuntu distribution of OpenFOAM and Paraview
11:39	We need to compile OpenFOAM and Paraview here.
11:43	It may take about 4 to 5 hours but this method always works.
11:50	Let us see how to solve a problem in OpenFOAM with an example.
11:56	Let me take a Lid Driven Cavity, as an example.
11:59	It is a 2D problem where the upper plate moves with a certain velocity and other three sides of the plate are fixed.
12:09	The type of Solver I am using here is for an incompressible flow called as "icofoam".
12:17	Now, open a new command terminal again.
12:22	I will drag this to the capture area.
12:31	Type the path for the lid driven cavity problem.
12:35	Note that this problem has already been set up in OpenFOAM.
12:41	In the command terminal, type "run".
12:45	This will direct you to the run directory of OpenFOAM. Press Enter.
12:53	Now type: cd (space) tutorials press Enter.
12:59	cd (space) incompressible press Enter.
13:07	cd (space) icoFoam(Note that 'F' here is capital). Press Enter.
13:15	cd (space) cavity. Press Enter.
13:20	To view the contents inside cavity, type 'ls' and press Enter.
13;27	You can see three files : '0', 'constant' and 'system'.
13:33	Now we need to mesh the geometry.
13:3	This can be done by the blockMesh utility of OpenFOAM.
13:40	In the terminal window, type: "blockMesh" (Note that 'M' here is capital). Press Enter.
13:52	Meshing has been done.
13:56	Now, run the solver 'icoFoam' by typing in the terminal "icoFoam" (Note that 'F' here is capital) and press Enter.
14:09	The iterations running can be seen in the terminal window.
14:13	Here, we notice that we have completed the solving point.
14:16	To visualise these results, let us open the paraview window.
14:21	To open paraView, type: “paraFoam” on the terminal (note that 'F' here is capital here). Press Enter.
14:42	This opens up the paraview window.
14:45	Now, on the left hand side,
14:48	in the object inspector menu,
14:50	click Apply to view the geometry.
14:54	You can see the Lid Driven Cavity.
14:57	Now, to see the boundary conditions, scroll-down the Object inspector menu and go to Mesh Parts.
15:08	Uncheck Internel Mesh and click Apply.
15:13	The geometry disappears.
15:15	Now, to view the moving and fixedWalls,
15:19	check both the boxes and click Apply.
15:30	Now, uncheck the Movingwall and click Apply.
15:35	You can see the three fixed walls and the moving wall which just disappeared.
15:44	Thus we are done with running openFoam and paraView.
15:49	In future, we will come across more tutorials on solving and visualising the OpenFOAM result.
15:56	Let me switch back to the slides.
16:01	In this tutorial, we learnt: How to install
16:05	OpenFOAM and Paraview through Synaptic Package Manager and the website and Solved a lid driven cavity.
16:12	As an assignment, install OpenFOAM and Paraview.
16:17	Watch the video available at this URL: http://spoken-tutorial.org/What_is_a_Spoken_Tutorial
16:21	It summarizes the Spoken Tutorial project.
16:24	If you do not have a good bandwidth, you can download and watch it.
16:29	The Spoken Tutorial Project Team:
16:31	* Conducts workshops using spoken tutorials.
16:34	* Gives certificates to those who pass an online test.
16:38	For more details, contact: sptutemail@gmail.com
16:45	Spoken Tutorials is a part of Talk to a Teacher project.
16:49	It is supported by the National Mission on Education through ICT, MHRD, Government of India.
16:56	More information on this mission is available at this URL link: http://spoken-tutorial.org/NMEICT-Intro
17:01	This is Rahul Joshi from IIT Bombay, signing off. Thanks for joining.

Contributors and Content Editors

Gaurav, PoojaMoolya, Pratik kamble, Sandhya.np14, Sneha