There are several physics interfaces included in the CFD Module to model heat transfer and nonisothermal flow. This chapter describes the physics interfaces found under the
Heat Transfer branch (
![](images/cfd_ug_fluidflow_noniso.07.01.1.png)
) as well as those under the
Fluid Flow>Nonisothermal Flow branch (
![](images/cfd_ug_fluidflow_noniso.07.01.2.png)
). The
Modeling Heat Transfer in the CFD Module section helps you choose the best physics interface to start with.