Difference between revisions of "OpenFOAM/C3/Exporting-geometry-from-Salome-to-OpenFOAM/English-timed"
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| − | | Select the '''Element Type '''as '''Face.''' Select the | + | | Select the '''Element Type '''as '''Face.''' Select the '''Group type''' as '''Group on Geometry'''. |
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| − | | Now, to create the''' group''' of the whole outer surface, right-click on '''mesh_1 | + | | Now, to create the''' group''' of the whole outer surface, right-click on '''mesh_1 >> Create group .''' |
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Revision as of 12:00, 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 :
|
| 00:26 | To record this tutorial, I am using:
|
| 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 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 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 the 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 bentpipe folder on the desktop in this icoFoam folder. |
| 05:22 | Also, copy the system folder from cavity folder to this bentpipe folder. |
| 05:32 | Now, go inside the bentpipe folder throgh command terminal.I am inside the bentpipe folder. |
| 05:41 | Type ls and press Enter. We can see the system folder and the bentpipe.unv file. |
| 05:49 | Now, type ideasUnvToFoam 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 seegeometry 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, typetransformPoints (space) -scale'(0.01 0.01 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 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 property 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. |
