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Is it possible to give a rotation frequency to boundaries?

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Old   July 31, 2013, 11:27
Default Is it possible to give a rotation frequency to boundaries?
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Hi to all,

I have a vertical circular pipe divided into two part: the upper and lower part. The upper part has to rotate with a given frequency while the lower one is stationary. I wanted to know if it's possible to do give a frequency to a boundary? if yes how should it be done?

Thanks for your time
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Old   August 3, 2013, 21:08
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You can use groovyBC library if you like.
Is it 3d?could you put a image of it here?
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Old   August 4, 2013, 04:14
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Quote:
Originally Posted by immortality View Post
You can use groovyBC library if you like.
Is it 3d?could you put a image of it here?
Thanks a lot for your reply.

Yes, it is a 3D circular pipe. Actually I have had some problems with defining the geometry in OpenFoam but I will upload it as soon i'm finished with that (latest tomorrow morning).

Until then I can upload the 3D sketch of the model. Note that the model has rectangular cross section in the sketch but it is circular in reality.

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Old   August 4, 2013, 05:06
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Hi
I couldn't see the figure please upload it anywhere else.
do you want to introduce a BC on the rotating wall or on the surroundings?
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Old   August 4, 2013, 05:17
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Hi,

I want to give a frequency to the walls (not surroundings) so they rotate.

I have attached the figure. Hope this works well now.
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