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-   -   Periodic Repeats Interface not showing consistent coupling (https://www.cfd-online.com/Forums/fluent/188158-periodic-repeats-interface-not-showing-consistent-coupling.html)

Kina May 24, 2017 06:36

Periodic Repeats Interface not showing consistent coupling
 
Hey Guys,
I set up a rotor/stator problem with translating sliding mesh motion. The rotor and stator region have periodic boundaries on their top and bottom sides respectively. The interface region is set up with the periodic repeats option. Though the solution is converging, it shows that the coupling of the periodic repeats interface is not consistent. I have translated the interface region geometry to show what is going on. The not-overlapping region of the interface is not consistent with the following stator part of the mesh (see picture).
Anybody knows if there is something I could have overlooked?

Cheers
Alex

http://imgur.com/a/CkbFc
http://imgur.com/a/CkbFc

Kina May 29, 2017 04:41

anybody with an idea what could have gone wrong? still working on the case with no reasonable solution :(

KaLium May 29, 2017 06:28

please send a picture of the mesh in that same area.

Kina May 29, 2017 07:02

1 Attachment(s)
This is the mesh in the exact area. As the simulation works with different codes, it was my thought that the periodic repeats interface may not work as I want it to.

Cheers
Alex

KaLium May 29, 2017 07:44

Mesh size is quite different in the problematic area. Try adapting the larger cells near the interface.


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