moving boundary

March 9, 2005, 02:10

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

March 9, 2005, 04:58

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

March 10, 2005, 00:04

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

March 9, 2005, 02:10	moving boundary	#1
Mazyar Guest Posts: n/a	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

March 9, 2005, 04:58	Re: moving boundary	#2
Terri Novotny Guest Posts: n/a	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

March 10, 2005, 00:04	Re: moving boundary	#3
Mazyar Guest Posts: n/a	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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