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Is it possible to make a partly-symmetric model in FLUENT/CFX? |
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#1 |
Senior Member
Lee Strobel
Join Date: Jun 2016
Posts: 133
Rep Power: 10 ![]() |
Hi,
I'm wondering if there is any way in either FLUENT or CFX to construct a model that is partly-symmetric - i.e. symmetric only in one particular local region? For example, I am currently trying to model internal flow in a valve, where in the center, the fluid is flowing outwards through a diffuser that consists of a cylindrical component with hundreds of radial holes. Trying to model all of those holes individually will be computationally very expensive; however, I expect the flow field through each one to be largely similar. Although, the flow through the rest of the valve beyond that is not radially symmetric (it only has half-symmetry), so it would not be accurate to model the entire valve as radially-symmetric. So, is there some way in either of these packages that I could model this cylindrical diffuser as a symmetric component - i.e. just mesh and solve one hole or one slice of the cylinder - but then extrapolate and reconstruct the combined flow field for the whole diffuser and apply that to the flow field in the rest of the valve geometry? I hope my question is clear enough, if not then I will try to clarify further. |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,761
Rep Power: 66 ![]() ![]() ![]() |
Yes but you have to become very skillful at creating interfaces. And usually it is much faster to solve the full non-simplified model than learning how to create these interfaces.
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#3 |
Senior Member
Lee Strobel
Join Date: Jun 2016
Posts: 133
Rep Power: 10 ![]() |
Ok, thanks for the advice, LuckyTran. Out of interest, is that possible in both FLUENT and CFX, or just CFX?
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Tags |
cfx, fluent, symmetry |
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