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Boundary conditions > Simulation objects > Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal simulation objects

Merge Set

Use the Merge Set simulation object to merge the calculation points for the elements of the selected region. Defining the Merge Set simulation object collects the selected elements into a single calculation point, forcing their temperatures to be identical.

The capacitances and applied heat loads of these elements are automatically combined, and any conductances to these elements are connected to the merged element.

You can assign a label to the merged set or let the software assign a label at run time.

After the solve, the software recovers the temperature results of all elements.

Where do I find it?

Application Pre/Post
Prerequisite An active Simulation file
Command Finder Merge Set
How do I

Merge elements using Merge Set

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

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

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Merge Set, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id983071 · retrieved 2026-07-17