Thermal Streams Junction

Use the Thermal Streams Junction simulation object to manually connect streams at a junction for streams that are disconnected in the digital model, but are actually connected in the physical model.

Using the Thermal Streams Junction simulation object you can select up to 40 streams to connect together, from predefined stream inlets and outlets groups. On the junction, the thermal solver computes the mass flow imbalance between the outlet mass flow of streams selected in the stream outlet groups and the inlet mass flow of the streams selected in the stream inlet groups.

This command lest you select a thermal stream from the list in the dialog box, from the Simulation Navigator, or in the graphics window.

For example, in the 25To26-27 thermal stream junction simulation object, Stream 25 is entering the junction and Stream 26 and Stream 27 are exiting it.

The thermal solver identifies all connected streams to solves them together. Streams can be connected together using the Thermal Streams Junction simulation object or when their inlets and outlets share nodes with the same coordinates.

After you solve the solution, you can display mass flow imbalance at junctions to inspect the boundary conditions you specified for thermal streams. For more information, see Display mass flow imbalances at duct and stream junctions.

Where do I find it?

Application	Pre/Post
Prerequisites	A Simulation file as the work part and displayed partSimcenter 3D Thermal/Flow, Simcenter 3D Electronic Systems Cooling, or Simcenter 3D Multiphysics as the specified solverAdvanced solution types for Simcenter 3D Thermal/Flow and Electronic Systems Cooling solver environments
Command Finder	Thermal Streams Junction
Simulation Navigator	Right-click the Simulation Object Container node→New Simulation Object→Thermal Streams Junction

How do I

Connect thermal streams at a junction

Connect thermal streams automatically

Display mass flow imbalances at duct and stream junctions

Learn more

Inputs to expressions

Thermal Stream

Look up more details

Thermal Streams Junction dialog box

Auto-generated expressions

Quick links

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

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

Command reference

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Thermal Streams Junction, Simcenter 3D 2021.1 Series

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