You can define the heat flux at the interface of the FFlex body. There are two types of heat flux. First one is how to define heat flux directly. Second one is how to define heat flux by convection which means heat transfer resulting temperature differences between interface of FFlex body and surrounding.
Figure 1 HeatFlux icon of the FFlex group in the Flexible tab
Figure 2 Heat Flux dialog box
•Patch Set: Defines a patch set.
•Direction: Select the direction to define the heat flow direction.
•Preview Direction: Previews the defined direction.
•Expression
•Heat Flux: Define the expression for heat flux through interface which is defined by patch set.