[max.e]

Hi folks,

is there a way to revert periodic faces back to standard ones?
In my case, a mesh created with ICEM features periodic faces for both the fluid and solid parts of the geometry. Fluent also automatically detects them as periodic.
Previous work has shown that for better accuracy of the solution, the periodic zones of the solid need an additional heat flux to be defined, which is not possible with periodic boundary conditions.
So how can I convert the periodic zones back to standard wall zones?
As far as I know, the TUI does not feature an option or command for that, or I could not find it.

Thanks in advance!

Cheers,
Max

[max.e]

The fix was easier than expected and a bit unintuitive to be fair. Deleting the periodic definition did not delete the zones themselves, it rather only deleted the periodic references (choose the periodic face in project tree -> right click -> "delete" below "type" || or similar path). You can use the resulting non-periodic faces as usual.

[Martin_Sz]

i can say that if U define periodic in simulation and U copy this simulation to ran next analysis U will get error and program will be stopped. This is additional thing for periodic definitions in fluent - I dont know when They repair this bug

[lukasf]

Originally Posted by max.e

The fix was easier than expected and a bit unintuitive to be fair. Deleting the periodic definition did not delete the zones themselves, it rather only deleted the periodic references (choose the periodic face in project tree -> right click -> "delete" below "type" || or similar path). You can use the resulting non-periodic faces as usual.

Hi,


it does not work for my case. I get this error message in the console:

"Error: Zone 30 is currently being used by a mesh interface and cannot be slit"



Zone 30 is the symmetry patch.


I tried to split the period mesh but it results in the same error message.


/mesh/modify-zones> slit-periodic
Periodic zone [()] 30

Moreover, this patch is not used in any of the mesh interfaces...

Any suggestions?

[lukasf]

Originally Posted by lukasf

Hi,


it does not work for my case. I get this error message in the console:

"Error: Zone 30 is currently being used by a mesh interface and cannot be slit"



Zone 30 is the symmetry patch.


I tried to split the period mesh but it results in the same error message.


/mesh/modify-zones> slit-periodic
Periodic zone [()] 30

Moreover, this patch is not used in any of the mesh interfaces...

Any suggestions?

In a similar Fluent case I am able to delete all mesh interfaces and afterwards I was able to delete the periodic patches.

[LuckyTran]

I can't follow what is zone 30. If zone 30 is a symmetry BC then it's not periodic and you shouldn't be trying to use slit-periodic on zone 30, you should be using zone 30 on the periodic zone.

There are two types of periodic thingies in Fluent. There is a periodic interface and there is a periodic pair-zone BC. The periodic pair shows up at one zone or one BC. The periodic interface has multiple in addition to the interface.

slit-periodic is for breaking the single periodic pair into two distinct surfaces which is usually not also a periodic interface unless you have made a mistake setting up your case, which can easily happen when you import your mesh into Fluent.

Breaking a periodic interface is done by simply deleting the interface.

[lukasf]

Originally Posted by LuckyTran

I can't follow what is zone 30. If zone 30 is a symmetry BC then it's not periodic and you shouldn't be trying to use slit-periodic on zone 30, you should be using zone 30 on the periodic zone.

There are two types of periodic thingies in Fluent. There is a periodic interface and there is a periodic pair-zone BC. The periodic pair shows up at one zone or one BC. The periodic interface has multiple in addition to the interface.

slit-periodic is for breaking the single periodic pair into two distinct surfaces which is usually not also a periodic interface unless you have made a mistake setting up your case, which can easily happen when you import your mesh into Fluent.

Breaking a periodic interface is done by simply deleting the interface.

Hi,


thanks for clarification.



Zone 30 was created by pairing of two patches (which I referred to as symmetry patches but they could also be used as periodic patches) by the command:


/mesh/modify-zones> make-periodic