External Temperature (Thin Layer, Thin Film, Fracture)
Use this subnode to specify the temperature on the exterior side of a thin layer, a thin film, or a fracture.
Temperature
For User defined, enter a value or expression for the Temperature T0. Else, select an Ambient temperature defined in an Ambient Properties node under Definitions.
The equation for this condition is T = T0 where T0 is the external temperature to be prescribed.
Constraint Settings
To display this section, click the Show More Options button () and select Advanced Physics Options in the Show More Options dialog.
The Constraint settings can be set to Pointwise constraints (default) or Weak constraints. Select Weak constraints to replace the standard constraints with a weak implementation.
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Constraint Reaction Terms
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Weak Constraints
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Constraint Settings
When this subnode is used with Layer type set to Thermally thin approximation, the parent thin structure feature is equivalent to the Temperature feature.
You can specify a harmonic variation of the temperature value in a frequency domain analysis of perturbation type, by adding a Harmonic Perturbation subnode. See Theory for Harmonic Heat Transfer for more details.
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Thin Layer (Heat Transfer Interface) and Solid (Heat Transfer in Shells Interface)
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Thin Film (Heat Transfer Interface) and Fluid (Heat Transfer in Shells Interface)
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Theory for Heat Transfer in Thin Structures
Location in User Interface
Context Menus
Heat Transfer in Solids > Thin Layer > External Temperature
Heat Transfer in Solids > Thin Film > External Temperature
Heat Transfer in Solids > Fracture > External Temperature
More locations are available. For example:
Heat Transfer in Fluids > Thin Layer > External Temperature
Ribbon
Physics tab with Thin Layer, Thin Film, or Fracture selected in the model tree:
Attributes > External Temperature