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BC for bubbly flow in 1/4 of a circular geometry

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Old   March 4, 2016, 09:50
Default BC for bubbly flow in 1/4 of a circular geometry
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Hi everybody;

I am doing a 3D simulation gas/liquid of a reactor with gas and liquid inlets from the bottom through different entrances. I am using fluent 16.2 for the simulations and ICEM for the meshing.

In order to simplify I am using only 1/4 of the geometry as the figure attached.

My problem is: Should I use periodic boundary repeat or symetry as BC in the pink and green surfaces ??

I have already read a lot about it, but it seemed a bit confuse for me. According to some authors the flow is symetric, I am justo not sure about the symetry BC is the right one.
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