The Heat Transfer in Fractures (htlsh) interface (
), found in the
Thin Structures physics area under the
Heat Transfer branch (
), is used to model heat transfer by conduction, convection and radiation in layered materials represented by boundaries. The interface is active on all boundaries where a layered material is defined, with a
Porous Medium model active by default. All functionalities for including other boundary contributions, such as surface-to-ambient radiation, are also available.
For thermally thin boundaries, it is possible to bypass the use of the product space, by selecting Nonlayered shell in the
Shell type list, and setting a user defined value for the
Thickness Lth directly in the interface. A lumped formulation assuming that heat transfer mainly follows the tangential direction of the boundary is then available.
When this version of the physics interface is added, these default nodes are also added to the Model Builder:
Porous Medium,
Thermal Insulation (an edge condition), and
Initial Values. Then, from the
Physics toolbar, add additional nodes that implement, for example, boundary interface or edge conditions, and heat sources. You can also right-click
Heat Transfer in Fractures to select physics features from the context menu.
See Boundary Selection for a description this section, common to all versions of the Heat Transfer in Shells interface.
See Shell Properties for a description this section, common to all versions of the Heat Transfer in Shells interface.
By default, the shape functions used for the temperature are Linear. This setting affects also the discretization of the temperature field in the thickness direction.
) and selecting Stabilization in the Show More Options dialog box. See Consistent Stabilization for more details.
) and selecting Stabilization in the Show More Options dialog box. See Inconsistent Stabilization for more details.
