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Old   March 9, 2005, 03:10
Default moving boundary
  #1
Mazyar
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Hi,

I am going to model something like a balloon which is filled with air. How can I define the moving boundaries in time?

Thanks, Mazyar
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Old   March 9, 2005, 05:58
Default Re: moving boundary
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Terri Novotny
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Hi Mazyar,

you'll have to turn on the dynamic zones model and specify the balloon wall as user-defined zone. Then you have to specify the exact motion of the wall using a UDF.

- Terri
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Old   March 10, 2005, 01:04
Default Re: moving boundary
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Mazyar
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Hi Terri,

Thanks lot for your reply. Actually I have no idea what shape my boundaries will have it will be a function of a pressure and time; I hoped FLUENT could do it for me.

Thanks, Mazyar
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