Help for symmetry and periodicity conditions
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I need some help...
I've to represent in ICEM a volume (the section is in the figure below) Attachment 11578 Is it possible to represent only 1/8 (in red) of the volume to do simulation? if it is, which boundary condition I have to set? symmetry? periodicity or both? If it isn't possible I think I have to represent 1/4 of the volume (in green) and I have to set periodicity conditions, is it correct? Thanks... |
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Thanks a lot Far
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Although I believe that the periodic condition is not suitable for this model, but you should use both conditions and check accuracy of both conditions.
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What type of symmetry you can use depends on what your actually modeling, if its non-buoyant flow through this cross section you can use 1/8 symmetry. If its buoyant flow through this cross section you can only use half symmetry. But you haven't told us what you are modeling, you've only shown the shape.
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well 1/8 is not possible as evident from the attached pic at post # 1
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Could you give me some more explanations? Thanks a lot |
In any case, I think I will semplify the section to a circular one and represent only 1/8 of the whole because I can't afford to increase the cell number...
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In case of 1/8 model you must use periodic condition |
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i completely agree with this conclusion! it's highly questionable to put the 1/8 model. |
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