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OpenFOAM Screencast - Showing how to build an OpenFOAM case from scratch

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Old   January 15, 2017, 18:02
Arrow OpenFOAM Screencast - Showing how to build an OpenFOAM case from scratch
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Tobias Holzmann
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Dear FOAM'er,

I am creating a series of screencasts where I demonstrate how to build your own case for an arbitrary geometry. The screencasts are split into different topics in order to allow everybody to check out the part he/she is interested in. In general I am talking about the following stuff:

  • Geometry preparation
  • Geometry reparation
  • Generation of patches
  • Triangulation of the surfaces (patches)
  • STL`s and region STL`s
  • Background mesh
  • Set-up of the snappyHexMeshDict
  • Surface feature snapping and generation
  • Layer generation
  • Boundary conditions
  • Solver settings
  • And other related stuff

You can find everything here Move me to the screencast

Everything is based on geometry that is shown below and we are using OpenFOAM, Salome and Blender during the screencasts.

Share it, comment it, like it, criticize it, enjoy it,...


Screencast.jpg
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Last edited by Tobi; January 23, 2017 at 09:55.
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Old   January 25, 2017, 08:01
Default screencast using salome and openfoam for engine exhaust
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Thank you very much for this contribution. I enjoyed the screencast.
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Old   January 27, 2017, 06:57
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Dear Tobi,
very helpful video tutorials, what you linked.

Thanks so much.

What a pity not got before!
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Old   January 31, 2017, 10:09
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Tobias Holzmann
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Quote:
Originally Posted by JR22 View Post
Thank you very much for this contribution. I enjoyed the screencast.
Dear Jose thanks for your reputation points! I may ask Bruno if it is worth to pin that thread. Otherwise it will be lost soon :P
Of course, thanks to you Valentine too, for giving me some feedback.
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Old   March 19, 2017, 07:20
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Dear Tobias,

Thank you very much first of all for your teaching on your website http://www.holzmann-cfd.de! I watched through your teaching videos and learned a lot, especially about creating mesh with Salome and snappyHexMesh. Your website is very helpful for beginners like me!

I met a problem with salome. I want to simulate blood flow in a blood vessel, which is basically like a pipe, but has irregularly curved surfaces and flow path. The geometry is saved in .step or a .stl file. I could import the .step file into salome. After I right clicked and chose create group, the dialog box became frozen. I could move the dialog box, but couldn't choose faces. The memory is sufficient, still plenty are free.

I tried a much simpler geometry, a pipe, there was no problem to create groups. Since I began to use salome yesterday, I am not sure whether is it an installation problem or do I meet the limit of salome so quickly in a day?

It would be a great favor of me if you would like to give me some hints! Thank you very much in advance!

All the best,

Sitajeje
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Old   March 19, 2017, 08:35
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Dear Sitajeje,

thank you very much for your feedback. Salome can be very slow if your STEP is very complex and has a lot of shells/faces/etc. I suggest, wait open it, great groups and then have a break. Sometimes I focus this problem too. Mostly if I extrude a face into a wrong direction (in that case I have to kill Salome) ... However, what you could to is -> extract your shell -> try to build a new solid and then try to create groups (or even with the shell).

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Old   March 19, 2017, 14:21
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Dear Tobias,

professionals are professional! Your hint provides exactly the solution: take it easy and have a coffee break! Thank you very much!

Have a nice evening!

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