Federico Alzamora Previtali
Ansys Employee

Use TUI command to slit wall-interior

define/boundary-conditions/modify-zones/slit-face-zone wall-interior

By default, Fluent used one-to-one pairing for Mesh interface creation, but to be sure you can enter define/mesh-interfaces/one-to-one-pairing? yes

Go to Mesh > Interfaces and create an interface between wall-interiorĀ andĀ wall-interior-slit. You should now find that the mesh interface is set to type Interior.