Coupling to Other Physics Interfaces
Often, you may want to simulate applications that couple fluid flow to another type of phenomenon described in another physics interface. Although this is not often another type of flow, it can still involve physics interfaces supported in the CFD Module and in the COMSOL Multiphysics base package. This is often the case for applications that include chemical reactions and mass transport (see Chemical Species Transport Interfaces), or energy transport, found in the Heat Transfer and Nonisothermal Flow Interfaces chapter.
More extensive descriptions of heat transfer, including radiation, can be found in the Heat Transfer Module, while a wider variety of tools for modeling chemical reactions and mass transport are found in the Chemical Reaction Engineering Module. Fluid flow is an important component for cooling electromagnetic phenomena, such as heat created through induction and microwave heating, which are simulated using the AC/DC Module and RF Module, respectively. Many applications involve the effect of fluid-imposed loads on structural applications, for example, fluid-structure interaction (FSI). The Structural Mechanics Module and MEMS Module have physics interfaces specifically for these multiphysics applications.
You can easily couple a 1D pipe segment modeled with the Pipe Flow interface with a 3D single phase flow using a Pipe Connection multiphysics coupling. This feature is available with a license for the Pipe Flow Module. For details, see the section Pipe Connection in the in the Pipe Flow Module User’s Guide.