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Old   May 27, 2011, 06:30
Default boundary condition
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hamid
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Hello

Is it possible to change boundary condition during non steady state simulation, e.g. after 10 seconds of simulating changing the poutlet to wall,
is it possible to do it regarding the case of satisfaction of some predefined criteria, e.g. if the domain reaches a specific amount of velocity... one can change from poutlet to wall ,

Thank you
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Old   May 27, 2011, 12:22
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you should be able to change it... depends on how are you running your transient simulation. i.e via a journal file, udf... you can change it via GUI too...
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Old   May 27, 2011, 12:25
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Hi,
I've done the first case with a journal file.
For the second case, you need a complicated UDF which I saw it few month ago in this forum, but I've not tried that before.
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Old   May 27, 2011, 12:43
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journal file..

set your boundary conditions to say Pressure outlet
run it for 10 secs
write the file
den set the boundary conditions to wall
run it..
it should work...i have changed it using GUI..that works . hope this helps...
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