Ansys Fluent allows you to include heat transfer within the fluid and/or solid regions in your model. Problems ranging from thermal mixing within a fluid to conduction in composite solids can therefore be handled by Ansys Fluent. When your Ansys Fluent model includes heat transfer you must enable the relevant physical models, supply thermal boundary conditions, and enter material properties that govern heat transfer and/or vary with temperature as part of the setup. For information about setting up and using heat transfer models in your Ansys Fluent model, see Modeling Thermal Energy in the User's Guide.