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September 8, 2021, 01:58 |
About Symmetry Plane
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#1 |
New Member
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Join Date: Sep 2021
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Hi, I have a question about Boundary Condition:Symmetry Plane .
If I set "Symmetry Planes" at the both red and blue boundaries in the attached image, What result can I get from it? Result(1)? or result(2)? Thanks. |
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September 8, 2021, 03:12 |
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#2 |
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Join Date: Nov 2019
Posts: 93
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Hi, I think (2) is right. Think of the red line in (1) being a symmetry BC in upper quadrant and a wall in lower - that would break the symmetry assumption. If your problem really has 2 planes of symmetry, then you can model just a quarter or the domain like you show in the first picture. Starccm doesn't create any additional geometry, the symmetry BC is just that - a boundary condition. Solution in the lower right quadrant is fixed by the symmetries (see attached picture for an example).
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