Difference between revisions of "OpenFOAM/C3/Exporting-geometry-from-Salome-to-OpenFOAM/English-timed"

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| Now, in the '''mesh''' menu at the top, click on '''Cut groups.''' Select the '''Main object''' as '''Group_1'''. Select '''Tool object''' as '''inlet.'''
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| Now, in the '''mesh''' menu at the top, click on '''Cut groups.''' Select the '''Main object''' as '''Group_1'''. Select the '''Tool object''' as '''inlet.'''
  
 
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| Right-click on the '''Group_1''' and '''delete''' this group as we do not want to see it in '''OpenFOAM.'''
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| Right-click on '''Group_1''' and '''delete''' this group as we do not want to see it in '''OpenFOAM.'''
  
 
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| Now, right click on '''mesh_1.''' Go to '''Export >> Unv File.'''
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| Now, right-click on '''mesh_1.''' Go to '''Export >> Unv File.'''
  
 
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|To perform simulation on this''' geometry '''in '''''OpenFOAM''''' using '''''icoFoam ''solver,''' Go to the '''''icoFoam ''folder''' in '''''OpenFOAM.'''''
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|To perform simulation on this''' geometry '''in OpenFOAM using '''icoFoam solver,''' go to the '''icoFoam''' folder in OpenFOAM.
  
 
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| For the location of this '''folder''', go to the''' tutorial''' on '''''lid driven cavity.'''''
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| For the location of this folder, go to the tutorial on '''lid driven cavity.'''
  
 
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| '''Copy''' and '''Paste ''bentpipe'' folder ''' on the''' desktop''' in this''''' icoFoam'' folder.'''
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| '''Copy''' and '''Paste''' the "bentpipe" folder on the desktop, in this ''' icoFoam''' folder.
  
 
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| Also, '''copy''' the '''''system''''' '''folder''' from '''''cavity'' folder''' to this '''''bentpipe ''folder.'''
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| Also, copy the '''system''' folder from the '''cavity''' folder to this '''bentpipe''' folder.
  
 
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| Now, go inside the'' '''bentpipe ''folder '''throgh '''command terminal.'''I am inside the''' ''bentpipe'' folder.'''
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| Now, go inside this '''bentpipe''' folder throgh '''command terminal.''' I am inside the''' bentpipe''' folder.
  
 
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| Type '''''ls''''' and press '''''Enter'''''. We can see the '''''system'' folder''' and the '''''bentpipe.unv ''file''.'''''
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| Type "ls" and press '''Enter'''. We see the '''system'''folder and the '''bentpipe.unv''' file.
  
 
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| Now, type '''''ideasUnvToFoam bentpipe.''(dot)''unv, '''''Note that '''U, T '''and '''F''' are''' capital.''' Press '''Enter.'''
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| Now, type: '''ideasUnvToFoam space bentpipe dot unv'''. Note that '''U, T '''and '''F''' are capital. Press '''Enter.'''
  
 
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|Now '''''Type ls.''''' We see ''' ''constant'' folder '''has been created. '''''Type cd (space) Constant.'''''
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|Now, type "ls". We see '''constant''' folder has been created. Type '''cd (space) Constant.'''
  
 
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| Type '''''cd ''(space) ''polyMesh.''''' Type''' ''ls''. '''Press''' ''Enter.'''''
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| Type '''cd (space) polyMesh.''' Type "ls". Press '''Enter.'''
  
 
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| We see'''geometry files '''have been created.Come out of the '''''polyMesh''''' '''folder. '''
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| We see '''geometry''' files have been created. Come out of the '''polyMesh''' folder.  
  
 
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| Come out of the '''''constant''''' '''folder.'''
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| Come out of the '''constant''' folder.
  
 
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| Now, to convert the '''geometry scale '''to '''centimeters''', type'''''transformPoints (space) -scale'(0.01 0.01 0.01)' '''''and press''''' Enter.'''''The '''Geometry '''has been converted to''' centimeters.'''
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| Now, to convert the '''geometry scale '''to centimeters, type:  '''transformPoints (space) -scale space '(0.01 space 0.01 space 0.01)' '''and press '''Enter.''' The '''Geometry '''has been converted to centimeters.
  
 
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| '''Minimize''' the '''terminal.'''Go inside the''' ''bentpipe'' folder.'''
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| Minimize the terminal. Go inside the '''bentpipe''' folder.
  
 
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| 07:23
 
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| Go inside''' ''constant ''folder.''' We see that the''' ''transportProperties ''file '''is not there.
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| Go inside the '''constant folder.''' We see that the''' transportProperties''' file is not there.
  
 
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| 07:30
 
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| Copy the '''''transportProperties ''file '''from the '''''cavity'' folder''' and '''save '''it inside the '''constant''' folder.'''
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| Copy the '''transportProperties''' file from the '''cavity''' folder and '''save '''it inside the '''constant''' folder.
  
 
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| 07:37
 
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|I have copied the transport property file Now, come out of the '''''constant'' folder.'''
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|I have copied the '''transport Properties''' file. Now, come out of the '''constant''' folder.
  
 
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| We need the '''''0 ''(zero)'' ''folder''' having '''''P''' ''and '''''U'' files.'''Copy the '''''0 ''(zero) folder '''from the '''''cavity ''folder.'''
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| We need the '''0 (zero)''' folder having 'P' and 'U' files.'''Copy''' the '0 '(zero) folder from the '''cavity''' folder.
  
 
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| 07:55
 
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| I have copied the''' ''0 ''(zero) folder.''' Go inside the '''''0 ''(zero) folder.'''
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| I have copied the'0' (zero) folder. Go inside the '0' (zero) folder.
  
 
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Revision as of 15:58, 4 July 2016

Time Narration
00:01 Hello and welcome to the spoken tutorial on Exporting the geometry from Salome to OpenFOAM.
00:09 In this tutorial, we will see :
  • To group the meshed geometry parts in Salome
  • To export the geometry to OpenFOAM
  • To create a case directory for simulation and
  • To view the geometry in ParaView.
00:26 To record this tutorial, I am using:
  • Linux operating system, Ubuntu version 12.10
  • OpenFOAM version 2.1.1
  • ParaView version 3.12.0
  • Salome version 6.6.0
00:41 To practice this tutorial, the learner should first perform the tutorial on Creating and meshing a Curved-Pipe Geometry in Salome.
00:52 Open Salome as shown in the previous tutorial. Go to file >> Open. Go to Desktop. Click on Curved-geometry.hdf.
01:04 Press Open. Go to mesh-module from Modules drop-down option.
01:12 Open the 'Mesh' tree from the object Browser.
01:17 Right-click on Mesh_1. Click on Show. We see the mesh on the geometry is visible.
01:28 Let me close the python console window.
01:32 Now, we have to name the meshed geometry parts as we require it in OpenFOAM.
01:39 To create Groups on this mesh, right-click on Mesh_1 and click on Create Group.
01:48 Select the Element Type as Face. Select the Group type as Group on Geometry.
01:57 Click on the button in front of Geometrical Object and select Direct Geometrical Selection.
02:07 Open the 'Geometry' tree in the Object Browser. Open the pipe_1 tree and select the inlet group in the geometry tree that we had created in the previous tutorial.
02:22 You can select the color as red.
02:26 Name the group as inlet. Click on Apply and close. inlet group is seen in the tree.
02:37 Similarly, create the outlet group. I have created the outlet group.
02:44 Now, to create the group of the whole outer surface, right-click on mesh_1 >> Create group .
02:53 Select the Element Type as Face and the Group Type as Group on filter.
03:00 Click on Set filter. Click on the Add button. In the drop-down option below Criterion menu, select Free Faces. Click on Apply and Close.
03:17 You can change the color to blue.
03:23 Again click on Apply and Close. Group_1 has been created.
03:31 Now, in the mesh menu at the top, click on Cut groups. Select the Main object as Group_1. Select the Tool object as inlet.
03:45 Hold the shift key on your keyboard and also select the Tool object as outlet.
03:54 Type the Result name as walls.
03:58 You can select the color as purple. click on Apply and Close. We see walls group has been created.
04:10 Right-click on Group_1 and delete this group as we do not want to see it in OpenFOAM.
04:20 Save the work by clicking on save document option.
04:24 Now, right-click on mesh_1. Go to Export >> Unv File.
04:33 Name the file as bentpipe. I am saving this file on the Desktop. Close Salome. We see bentpipe.unv file on the desktop.
04:50 Create a folder named "bentpipe" on the desktop.
04:55 Now, move "bentpipe.unv" file to this folder.
05:01 To perform simulation on this geometry in OpenFOAM using icoFoam solver, go to the icoFoam folder in OpenFOAM.
05:10 For the location of this folder, go to the tutorial on lid driven cavity.
05:15 Copy and Paste the "bentpipe" folder on the desktop, in this icoFoam folder.
05:22 Also, copy the system folder from the cavity folder to this bentpipe folder.
05:32 Now, go inside this bentpipe folder throgh command terminal. I am inside the bentpipe folder.
05:41 Type "ls" and press Enter. We see the systemfolder and the bentpipe.unv file.
05:49 Now, type: ideasUnvToFoam space bentpipe dot unv. Note that U, T and F are capital. Press Enter.
06:11 Now, type "ls". We see constant folder has been created. Type cd (space) Constant.
06:23 Type cd (space) polyMesh. Type "ls". Press Enter.
06:31 We see geometry files have been created. Come out of the polyMesh folder.
06:38 Come out of the constant folder.
06:42 Now, to convert the geometry scale to centimeters, type: transformPoints (space) -scale space '(0.01 space 0.01 space 0.01)' and press Enter. The Geometry has been converted to centimeters.
07:17 Minimize the terminal. Go inside the bentpipe folder.
07:23 Go inside the constant folder. We see that the transportProperties file is not there.
07:30 Copy the transportProperties file from the cavity folder and save it inside the constant folder.
07:37 I have copied the transport Properties file. Now, come out of the constant folder.
07:44 We need the 0 (zero) folder having 'P' and 'U' files.Copy the '0 '(zero) folder from the cavity folder.
07:55 I have copied the'0' (zero) folder. Go inside the '0' (zero) folder.
08:02 Open the p file .Make sure that you give boundary patches for inlet, outlet and walls as we had created in Salome.
08:15 Erase movingWall and type inlet. Erase fixedWall and type outlet.
08:25 Erase frontAndBack and type walls. Save the file and Close the file.
08:34 Similarly,Make changes in U file. For appropriate boundary conditions,you can refer to the tutorial on Hagen-Poiseuille flow.
08:46 I have made the changes and given the appropriate boundary conditions.
08:51 You may also make the changes in transportProperties and ControlDict files by refering to the tutorial on Hagen-Poiseuille flow.
09:00 Let's close the Home Folder.
09:03 Now, go to terminal.Type paraFoam. This will open ParaView. Click on Apply in the Object Inspector Menu.
09:16 In the drop down menu click on Surface with Edges. Lets have a closer look by zooming in.
09:28 We see hexahedral mesh. We also see the groups have been created as we had named it in Salome- Inlet outlet and walls.
09:38 Volume inside the surface is automatically grouped as internal mesh. In this tutorial we have learned:

How to group the meshed geometry parts in Salome.

How to export the geometry to OpenFOAM.

How to create a case directory for simulation.

And to view the geometry in ParaView.

10:00 For Assignment,Run the simulation by making appropriate changes in the files as described.

Export the geometries that you have created on your own.And run the simulations on those geometries.

10:14 The video is available at the following 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.
10:24 The Spoken Tutorial Project Team Conducts workshops using spoken tutorials Gives certificates to those who pass an online test For more details, contact@spoken-tutorial.org
10:40 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. This project is coordinated by http://spoken-tutorial.More information on this mission is available at, http://spoken-tutorial.org/NMEICT-Intro
10:58 I am Saurabh Sawant, from IIT Bombay, Thank you.

Contributors and Content Editors

PoojaMoolya, Pratik kamble, Sandhya.np14

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