Command reference help topics > Interface Resistance dialog box (Thermal/SST/ESC/Multiphysics)
Interface Resistance dialog box — Edge Interface option
| Option | Description |
|---|---|
| Name | Lets you specify a name for the simulation object.Description opens an editor that lets you type a description for the constraint. |
| Destination Folder | |
| Simulation Object Container | Specifies the folder in the Simulation Navigator in which the boundary condition will be 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 listing of existing folders. To create a new folder, right-click any level of the hierarchy and choose New Folder. |
| Region | |
| Group Reference | Lets you apply the resistance regions to a group.For more information, see Group Reference options. |
| Select Object | Lets you select the common edge, 1D elements, or edges of 2D elements representing the resistance.Element Selection Filtering lets you limit your element selection to the FE entity you select from the Filter Type list:0D Elements, 1D Elements lets you select only 1D elements.Element Edges lets you select only the edges of 2D elements.Note: You must select Element from the main selection Type Filter list to use the Element Selection Filtering options.Excluded lets you remove individual entities from within your selected object. |
| 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. |
| Magnitude | |
| Type | Specifies the method to define the additional conductances.Total ConductanceDefines the total conductance. Specify its magnitude in the Conductance box.Total ResistanceDefines the conductance as the inverse of total resistance. Specify its magnitude in the Resistance box.Conductance per LengthDefines the conductance per length. Specify its magnitude in the Conductance per Length box. The software multiplies the conductance you specify by the length of the associated primary element along the shared edge.Heat Transfer CoefficientDefines the heat transfer coefficient. Specify its magnitude in the Heat Transfer Coefficient box. The software calculates the resistance as 1 / (heat transfer coefficient x area). At the edge interface, the area is calculated as (the length of the edge interface) x (the minimum shell thickness).For more information, see Additional magnitude options. |
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Interface Resistance
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Interface Resistance dialog box — Interface Between 2 Sets option
Interface Resistance dialog box — Surface Interface option
Modeling scenarios for using an Interface Resistance
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Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal
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Interface Resistance dialog box — Edge Interface option, Simcenter 3D 2021.1 Series
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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id631826 · retrieved 2026-07-17