Keyur Kanade
Ansys Employee

As ANSYS Staff, we can not download attachments. Please insert images using insert image functionality. 

If you are seeing boundary zones as interior then it must be conformal mesh. From your description it looks like you want to use sliding mesh approach in fluent. For this you will need non conformal mesh. For this, please create separate parts for enclosure and disc. Then you will get different boundary zones for which you can change type to interface. 

Please check 




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