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Problems with peridic B.C.

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Old   December 13, 2000, 13:12
Default Problems with peridic B.C.
Peter Kolb
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maybe somebody can help me: I try to simulate a part of an agitated column. This part should consist a 60 angle of the flow region. For the faces edgewise I want to use rotational periodic conditions and for the inlet and oulet of the flow region I want to take translatoric conditions. Because of the stirrer I have to work with the multi reference frame (MRF). At the moment it is no problem to realize the rotational periodic condition. But if I change the boundary conditions for the inlet & outlet to trans. periodic condition, after a few iteration steps my problems start to diverge. Have somebody experience (using FLUENT) with trans. periodic condition combined with 2 or more fluid zones ?

For every help I am truly grateful.
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