KNOWN ISSUE: CFD-Post reports wrong heat flux for 1:1 CHT cases with radiation (Class 3 Error)
When a CHT calculation is performed that includes radiation in the solid, and the interface type is set to either Automatic or 1:1, then the Heat Flux reported by CFD-Post on the solid side of the interface is wrong.
The algorithm used by CFD-Post to calculate the correct heat flux at the interface relies on information in the results file that is not present for 1:1 interfaces. Note that 1:1 interfaces are also generated where the connections are 1:1 and the interface type is set to Automatic.
Set the interface type to be GGI.
ANSYS CFX Release 12.1.