Because you will view the results of this problem in CFD-Post, you need to specify the units used in the simulation. The default unit is metric_MKSA+Kelvin. The procedure to set the units is as follows:
Select Outputs from the top-level Ansys Polydata menu.
Outputs
Note that output for CFD-Post is already enabled by default, as indicated in the description of the Current output(s) at the top of the Outputs menu that opens.
Click Set units for CFD-Post, Ansys Mapper or Iges.
Set units for CFD-Post, Ansys Mapper or Iges
This will open the Change System of Units for specific outputs menu.
Click Modify system of Units.
Modify system of Units
Click Set to metric_cm/g/s/A+Celsius.
Set to metric_cm/g/s/A+Celsius
Click Upper level menu option three times to return to the top-level menu.
Upper level menu