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Old   May 17, 2012, 13:40
Default periodic conditions
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kostas
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Dear all
I have made a 3d mesh which has 2 periodic faces. When i open the .msh file fluent has these two faces as wall. How can i set them as periodic?
At boundary conditions i dont find the boundary: periodic and the "periodic conditions" of "Define" menu is not enable.
What could i do for that?

Thanks..
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Old   May 17, 2012, 14:07
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Hi!

You have to do with a TUI command:

/mesh/modify-zones/make-periodic

Regards,

-Edu-
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Old   May 18, 2012, 03:14
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If you're using FLUENT 13 then change the boundarys of the 2 faces to interfaces and then under the tab Mesh Interface you can define your periodic boundary

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Luke
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Old   May 18, 2012, 03:20
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Sijal Ahmed Memon (turboenginner@gmail.com)
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@delaneyluke: I tend to use this method, whenever the periodic surfaces have the different mesh distribution.

@Edu-R: This method only works, when the mesh is exactly the same (I am not talking about similar) node to node on periodic planes.
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Old   May 18, 2012, 15:04
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Quote:
Originally Posted by Far View Post
@Edu-R: This method only works, when the mesh is exactly the same (I am not talking about similar) node to node on periodic planes.
You are right, I supposed that he had a conformal mesh. Sorry about that

kostaspan, as Far says, if you don't have the same mesh (or at least with a difference lower than "matching tolerance" parameter), you have to use the method they say.

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Old   May 18, 2012, 15:38
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Sijal Ahmed Memon (turboenginner@gmail.com)
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Quote:
You are right, I supposed that he had a conformal mesh. Sorry about that

Just wanted to share my experience, no hard feeling. Afterall this is brain storming. Your method is my favourite one, and I use whenever I can.
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