How to define an inlet boundary condition at a fluid-solid interface for a Fluent simulation?

This article will inform the reader on how to define an inlet boundary condition type at a solid-fluid interface in Ansys Fluent.  The solution permits a user to change a face zone with coupled wall boundary condition adjacent to a fluid cell zone to an inlet boundary condition, whether it be velocity, mass flow, or pressure inlet.  The shadow face zone adjacent to the solid cell zone remains a wall face zone with wall boundary conditions.  The key solution is to use the slit-face-zone command from the Text User Interface (TUI). 

Step 1: Identify the zone identification number for the face zone that is to be converted.  This face zone should be adjacent to a fluid cell zone 

Step 2: Enter the following TUI command in the Console and add the face zone id number followed by (). 

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

Step 3:  Change the boundary condition type of that zone. 

The face zone now appears in the "inlet" group. 

The prior shadow face zone is renamed with "slit" in the name, and the thermal boundary condition (if active) is changed.