A fully-developed interface is used to specify the periodic pressure drop for periodic (cyclic) repeats. Although it makes most physical sense that this type only be applied to periodic interfaces, it is not restricted to periodic interfaces.
Fully developed flow in a tube or channel
For both the Coupled and Segregated Flow models, the pressure jump is specified at the interface.
For the Segregated Flow model, the mass flow rate may be specified instead of the pressure jump.
May only be used between regions belonging to the same fluid continuum
Fully-developed periodic heat transfer cannot be accommodated. Therefore, if energy is activated in the simulation, the boundaries of the fully-developed continuum must be adiabatic.
If the mass flow rate is specified, there can be no inlets or outlets connected to the continuum containing the interface. In addition, specifying the mass flow rate typically does not make sense for an in-place interface.