Unassigned interface zone detected for interface 38............
 

Dear Friends,

Can someone help me please. I get below response from FLUENT 16.1 when I check mesh created in ICEM:

"Checking mesh........................
WARNING: Unassigned interface zone detected for interface 38............
Done.

WARNING: Mesh check failed".

I am simulating internal flow through a duct, made up of different sections that are bolted together.

Thanks in advance for your guidance.