Inappropriate zone type, inability to change to interior & skipping of zones
 

Hi all,
Please, assist me to fix these probems:

Problem 1
I imported a mesh from Gambit into Fluent. The pictorial representation of the grid is attached. The cut1 & cut2 are the two holes that pass through the thickness of the strip. The strip is then inserted into the tube.
The following message appeared on the console:

Warning: Inappropriate zone type (interior) for one-sided face zone 5.
Changing to wall.

Error: Cannot change cutflow1 to interior because
there is only one adjacent cell thread.
Error Object: #f
cutflow1

Error: Cannot change cutflow2 to interior because
there is only one adjacent cell thread.
Error Object: #f
cutflow2

Problem 2
I imported a mesh from Gambit into Fluent. The pictorial representation of the grid is attached. (the same grid as in Problem 1). The cut1 & cut2 are the two holes that pass through the thickness of the strip. The strip is then inserted into the tube.
The following message appeared on the console:

Removing 1157 unreferenced faces, zone 5.
Removing 1143 unreferenced faces, zone 6.

Warning: Number of nodes read (349210) does not match number referenced (346734).

Resetting counter to match the number referenced.
Skipping zone cut1 (not referenced by grid).
Skipping zone cut2 (not referenced by grid).