Temperature Coupling and Flow Coupling Multiphysics Features
These multiphysics features implement a one-way coupling (one in each direction) between the heat transfer and the fluid flow coupling. These couplings are interesting when you want to explicitly show that the coupling is not bidirectional: it is possible to use only the
Flow Coupling
when the fluid properties are not temperature dependent.
This approach is valid for laminar flow only. Also, the consistent stabilization does not account for the multiphysics coupling, which, similarly to the previous approach, can lead to convergence issues when the multiphysics coupling is strong, in particular when the temperature dependence of the fluid properties is large. Pressure work and viscous dissipation are not handled. In addition, the physics interface settings may not be optimal for the numerical treatment of the coupling.