Additional Conductance options

Name
Name	Specify a name for the simulation object.Description opens an editor that lets you set a description for the simulation object.
Destination Folder
Simulation Object Container	Specifies the folder in the Simulation Navigator in which the boundary condition is stored. The list includes the root container and existing folders that you created using the New Folder command. Examples of a root container include Load Container, Constraint Container, and Simulation Object Container.
Folder Manager	Displays a hierarchical list of existing folders. To create a new folder, right-click any level of the hierarchy and choose New Folder.
Primary Region/Secondary Region
Group Reference	Applies the primary or secondary region to a group.For more information, see Group Reference options.
Select Object	Lets you select both the primary or secondary sets of elements.Excluded lets you remove individual entities from within your selected object. The software does not apply the simulation object to the excluded elements.
Stacked Smart Selector Methods	Opens the Smart Selector Methods dialog box where you can specify a progression of smart selection filters.For more information, see Smart Selector Methods dialog box.
Primary Region Override/Secondary Region Override
Override Primary Region/Override Secondary Region	Overrides the primary or secondary region with a non-geometric element.Non-Geometric ElementCreates an additional conductance between the primary or secondary region and the non-geometric element. Select an existing non-geometric element modeling object from the list, or click Create Modeling Object to create a non-geometric element.
Region Side Specification
Specify Region Side to Apply to	Specifies the shell side to use for the primary region or secondary region when the Primary Region or Secondary Region selections contains 2D elements. You can select Top or Bottom from the Primary Region Side and Secondary Region Side lists.Note: Multi-layer shell uniform elements are not supported with specified shell sides.
Magnitude
Type	Specifies the type of additional conductance to apply between the primary and secondary regions.ConductiveDefines a linear conductive conductance, which is combined in parallel with any existing linear conductive conductances between the elements. You specify the conductance value in the Conductance Value box in units of power/temperature.One-way ConductiveDefines a linear one-way advective conductance going from the secondary element to the primary element. The secondary elements are not affected by the conductance. You use this type to model fluid flow, where the primary element is downstream and the secondary element is upstream. The conductance value is equal to the mass flow times the fluid's specific heat. You specify the conductance value in the Conductance Value box in units of power/temperature.Series ConductiveDefines a linear conductive conductance in series with existing linear conductive conductances between the selected elements. You can use this type to model contact conductances. You specify the conductance value in the Conductance Value box in units of power/temperature.RadiativeDefines a radiative conductance, which is combined in parallel with any existing radiative conductances between the elements. For radiative conductances, the conductance magnitude is specified in area units and is equal to GBVF × ε¹ × A¹, where:GBVF is the specified gray body view factor.ε¹ is the emissivity of the primary element.A¹ is the overlap area of the primary element with the secondary element.You specify the conductance value in the Radiative Conductance box in units of area (length2).One-way RadiativeDefines a radiative one-way conductance going from the secondary elements to the primary elements. The secondary elements are not affected by the conductance. You specify the conductance value in the Radiative Conductance box in units of area (length2).Series RadiativeDefines a radiative conductance in series with existing radiative conductances between the selected elements. Defines a radiative conductance in series with any existing radiative conductances. You specify the conductance value in the Radiative Conductance box in units of area (length2).Free ConvectiveDefines a free convective conductance between the selected elements. The heat flow, Q, between primary and secondary elements is computed as:*Q= G× ΔT(1+x)*where:G is the free convective conductance value.x is the exponent. ΔT is the temperature difference between the primary and secondary element.You type the conductance value, G, in the Conductance Value box and the exponent value, x, in the Exponent box, for which a standard value is 0.25.FollowerDefines a conductance where the temperature of the secondary elements are sinked to the temperature of the primary element. The secondary elements become temperature sinks in the model.

How do I

Create a thermal coupling

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Thermal Coupling

Specifying a Coupling Resolution

Using the Only Connect Overlapping Elements option

Using the Overlap Projection Direction option

Thermal Coupling magnitude types

Temperature dependency for thermal and electrical couplings

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Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal

Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal boundary conditions

Additional Conductance options, Simcenter 3D 2021.1 Series

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