The Heat Transfer in Fluids Interface
The Heat Transfer in Fluids () interface is used to model heat transfer in fluids by conduction, convection, and radiation. A Fluid model is active by default on all domains. All functionality for including other domain types, such as a solid domain, is also available.
The temperature equation defined in fluid domains corresponds to the convection-diffusion equation that may contain additional contributions like heat sources.
When this version of the physics interface is added, these default nodes are added to the Model Builder — Fluid, Thermal Insulation (the default boundary condition), and Initial Values. Then, from the Physics toolbar, add other nodes that implement, for example, boundary conditions and sources. You can also right-click Heat Transfer in Fluids to select physics features from the context menu.
Discretization
By default, the shape functions used for the temperature are Linear.
To display more than the shape functions in this section, click the Show More Options button () and select Advanced Physics Options in the Show More Options dialog. The rest of the settings are the same as for The Heat Transfer in Solids Interface. See Settings for the Heat Transfer Interface for a description of the other settings.
See Table 2-4 for links to common sections and Table 2-5 to common feature nodes. You can also search for information: press F1 to open the Help window or Ctrl+F1 to open the Documentation window.
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Feature Nodes for the Heat Transfer in Fluids Interface
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Theory for Heat Transfer in Fluids