Creating Periodic Boundary Conditions
Steps of creating periodic zones in FLUENT are described here.
Steps
To create conformal periodic boundaries, you will use the make-periodic text command.
text interface commands:
grid>modify-zones>make-periodic
Periodic zone [ () ] periodiczoneID
Shadow zone [ () ] shadowzoneID
Rotational periodic? (if no, translational) [ yes ] n
Create periodic zones? [ yes ] yes
computed translation deltas: -2.000000 -2.000000
all 10 faces matched for zones 1 and 4.
zone shadowzoneID deleted
Created periodic zones.
Reference
More details could be found in FLUENT documentation:
FLUENT 6.3 User's Guide - 6.8.4 Creating Periodic Zones