Difference between revisions of "OpenFOAM/C2/Installing-Running/English-timed"

|| ''Time'''

| Hello and welcome to the spoken tutorial on '''Installing and running OpenFOAM and paraView'''.

| In this tutorial I will show you  

 

| how to '''install and run'''  

 

 

'''OpenFOAM '''

 

 

'''Paraview''' and

 

| How to solve a '''lid driven cavity'''.

|  To record this tutorial  I am using '''Linux Operating system Ubuntu  version 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.  

|  To practice this tutorial you should have some basic knowledge of '''Computational Fluid Dynamics'''.

 

| And '''Linux Commands'''.

|  Let me introduce you to '''OpenFOAM'''

|  It contains a wide range of '''solvers''' for solving '''CFD''' problems of'''2dimensional '''

 

| as well as '''3dimensionals'''.

| Now let me''' introduce''' you to '''Paraview''':

 

| It is used for '''visualizing the results''' obtained in '''OpenFOAM'''.

|  '''OpenFOAM and paraView''' can also be installed  through '''Synaptic package manager'''

|  For '''Synaptic Package Manager''' go to '''System > Administration > Synaptic Package Manager'''

| Type your '''password'''.

|  In the '''Search Box type OpenFOAM'''  

|  you can see '''openfoam as well as paraView'''.

|  'Mark''' both of them for '''installation'''

| And then Click  '''Apply''' to install

| The '''Installation''' may take some time.

|  '''OpenFOAM and Paraview''' are '''installed'''.

|  For more details on '''Synaptic Package Manager '''

 

| please visit our '''website '''on this URL : http://www.spoken-tutorials.org

 

 

 

|  '''Alternately''' you can also '''install OpenFOAM and paraView '''from '''openfoam''' website on this url: http://www.openfoam.com/download

| Let me open up the '''browser '''

| In the browser URL type : [http://www.openfoam.com/download http://www.openfoam.com/download]Press Enter

|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 and go to installation

| From the '''first point of installation '''

 

| '''copy''' this '''command line''' and  

 

| '''paste''' it in the '''terminal window'''

 

 

 

| To open up a the '''terminal window'''

 

| press '''Ctrl,Alt and t keys''' simultaneously on your '''keyboard'''or  

 

| go to '''Application > Accessories > Terminal '''

| Open up a '''terminal window'''

 

| Now copy this '''command line''' and '''paste it''' in the '''terminal window'''

| Note that in place of ''''lsb_release -cs''''

 

| replace it with the name of '''Linux version'''  that you are using

| ''Switch back''' to the browser.Above installation you can see different ubuntu version and the code names.

|As i am using linux 10.04

|I will replace lbs _ release-cs with lucid

|Open up the terminal window

|I will '''replace this''' by '''lucid'''.Press enter

| Note that '''Installation''' here is incomplete  

 

| if you follow the steps in the

 

| '''sequence 1-2-3-4''' you will be done through   '''installing open foam and paraview '''.

| I have already installed '''OpenFOAM And Paraview'''  through '''Synaptic Pacakage Manage''' some while ago

|Now we need to '''configure''' the '''installed software'''

| To do this we need to '''edit''' the '''bash''' '''file'''

| 05: 35

| In the '''command terminal''' type : ''''gedit ~/.bashrc''''. Press Enter

| This opens up the '''bash''' '''file''',

| Let me drag this to the '''capture area''' scroll down to the bottom of the '''bash file'''

| Now switch back to the '''browser'''

 

| Scroll down and go to user '''configration'''

|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'''

| To do this open up a new '''command terminal''' terminal

 

| Let me drag this to the capture area

|  In the '''command terminal''' type ''''icoFoam ('''Note that F here is capital)''' space -(dash) help '''

 

| Press enter

| A '''usage message''' will appear.

| You are now ready to start with '''OpenFoam'''

| Now let me show you how to set up a '''working directory.'''

| Create a '''project or a user directory''' by the name '''run'''

| Open a new '''command terminal'''. Let me drag this to the '''capture area''' again

| In the '''Command Terminal''' type : '''mkdir (space) -p (space) $FOAM_RUN'''

( Note That '''FOAM''' and '''RUN''' are in '''capital''') Press Enter

 

 

|Copy the '''tutorial''' '''directory''' from openfoam distribution to '''run directory'''

| By typing in the '''terminal ''' '''cp (space) -r (space) $FOAM_TUTORIALS (space) $FOAM_RUN '''

 

| '''(''' note  that '''FOAM''' '''TUTORIAL' And RUN'' are capital''')''' '''and '''Press Enter

| Both the '''directories''' are now created.

| To view the '''directories''' go to '''Places > Home Folder > OpenFOAM folder .'''

| You can see '''ttt-210''', Click on it

|'''Run and tutorials'''

| Close this

 

|   let me switch back to the '''slides'''.

| If some errors occurs during '''downloading''' '''OpenFOAM and Paraview'''

 

| from '''Synaptic Package Manager''' or '''Ubuntu Debian pack from the website '''

 

| then you can '''download and install Openfoam''' and''' paraview '''from the''' source pack installation'''

| For source pack installationGo to the '''Download''' page of '''openfoam website '''

 

| Now let me '''zoom''' this

|Scroll down and  go to'''Source Pack Installation '''. Now click on this

| Now scroll down and '''Go to Packs '''

| Download these '''2 tar files and save them'''. I have already downloaded and saved this 2 tar files

| After this go to your '''home directory'''

| To do this go to '''Places > home folder'''

 

| Let me drag this to the '''capture area'''

| In your home '''directory''' create a '''folder''' by a name of your choice  

 

| Let me put this as '''abc'''

 

| '''Copy''' the 2 '''downloaded''' files in the '''folder'''  that you have 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'''.

 

 

''' Extract here''', this make take a couple of minutes

|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 in which  you have untared the   tar files'''

| Now type '''cd ( '''space )''' abc''' and press enter.

|Now To view the contents inside abc type '''ls''' and press enter

| Now go back to the '''Download page of OpenFOAM website''' for '''source pack installation'''

|And Follow the steps given below for '''ubuntu distribution''' for '''OpenFOAM and Paraview'''

| We need to '''compile OpenFOAM and Paraview here'''

|  It may take about '''4 to 5 hours''' but this method always works .

 

|Let us see how to '''Solve''' a problem in '''OpenFOAM''' with an example

| Let me take a “'''Lid Driven Cavity'''” as an example.

| It is a '''2D problem''' where the upper '''plate''' moves with a certain velocity and other three sides of the '''plate '''are fixed

|The type of '''Solver''' I am using here is for '''incompressible flow''' Called as -'''icofoam'''

|Now Open a new '''command terminal''' again

 

| i will drag this to the '''capture area'''

|Type the path for the '''lid driven cavity''' problem

| Note that this '''problem''' has already been '''set up''' in '''OpenFOAM'''

| in the '''command terminal''' Type ''''run''''

 

| This will direct you to the '''run directory''' of '''OpenFOAM'''

 

 

|Now type '''cd (space) tutorial '''(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 content inside cavity '''type ls''' and press enter

|  13;27

| You can see three files : '''0,constant and system'''

|  Now we need to '''mesh''' the geometry

|13:3

| This can be done '''blockMesh '''utility of OpenFOAM

|Open the '''terminal window''' type '''blockMesh'''

 

 

(Note here that '''M''' is capital) Press Enter

| '''Meshing''' has been done

| | Now run the solver ''''icoFoam'''' by typing in the '''terminal ''' '''''icoFoam'''''

 

 

(Note that '''F''' here  is capital)  

 

 

and Press Enter.

|  The '''iterations''' running can be seen in the '''terminal window'''

| 14:13

| Here we notice we have '''completed''' the '''solving''' point.

| To '''visualise''' these results let us open the '''paraview window.'''

|  To open '''paraView''', type “'''paraFoam” '''in the terminal.

 

 

(Note that ''''F'''' is '''capital''' here)  press Enter

| This open ups the '''paraview window'''

 

 

 

|14:45

| |Now On the left hand side,

 

| In the '''object inspector menu''',  

 

| Click '''Apply''' to view the '''geometry'''

| 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

| Uncheck Internel Mesh and click Apply

| 15:13

|   The geometry disappear.

| Now to view the moving and fixedwalls

 

| Check both the boxes and click Apply  

|15:30

| Now uncheck the Moving wall  and click Apply

| You can now see three fixedwalls and the moving wall which just disappeared.

| 15:44

| As we are done with running openfoam and paraview

| In future we will come across more tutorials on solving and visualising the OpenFOAM result

|  Let me switch back to the slides

| In this tutorial we learnt how to install:

 

| OpenFOAM and Paraview through Synaptic Package Manager and the website

 

solved a lid driven cavity.

|  As as Assignment, install OpenFOAM and Paraview

 

| If you do not have good bandwidth, you can download and watch it.  

| 16:29

| The Spoken Tutorial Project Team

| -Conducts workshops using spoken tutorials

| -Gives certificates to those who pass an online test

| -For more details, contact st tutemail@gmail.com

| Spoken Tutorials is part of Talk to a Teacher project,

| More information on the same is available at thisURL link http://spoken-tutorial.org/NMEICT-Intro

|| This is Rahul Joshi from IIT BOMBAY signing off.

 

Thanks for joining.