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Symmetry or Axis B.C ??

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Old   March 13, 2011, 04:07
Default Symmetry or Axis B.C ??
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what is the difference between symmetry and Axis boundary condition? I mean that in the symmetric geometry when we use symmetry or Axis Boundary condition?
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Old   March 13, 2011, 06:50
allan thomson
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with a symmetry bc, it is assumed that fluid does not cross the boundary, axis symmetric bc it can.

Think about it as a circular pipe, if the fluid has a swirl or tangential component then one cannot use a symmetric bc you must use axis symmetric.

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Old   May 20, 2011, 06:27
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Filippo Pellacani
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how can i create an axis bc? i´m not able to import a mesh created in icem into cfx pre where the 2d region axis is present, even if is was created as single part in icem cfd.

any ideas/solutions?
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