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Example 12: Uniform Temperature Boundary Condition

General

• The [Uniform Temperature] boundary condition is studied.
   

• The temperature distribution is even on the uniform temperature faces.
   

• The topologies set with the [Uniform Temperature] boundary condition will have the same temperature if they bear the same name.
   

• The temperature distribution and the heat flux vectors are solved.
   

• Unless specified in the list below, the default conditions will be applied.
   

• Obtain this session's project file. (Right-click and choose 'Save link as')




• Results will vary depending on Femtet version and the PC environment.

 

Analysis Space

Item	Settings
Analysis Space	3D
Model Unit	mm

 

Analysis Conditions

Item	Settings
Solver	Thermal Analysis [Watt]
Analysis Type	Steady-state Analysis
Options	N/A

Model

Two square rods are positioned separately with their ends facing each other.

Those face topologies are set with the [Uniform Temperature] boundary condition, and both are named Hyper.

Body Attributes and Materials

Body Number/Type	Body Attribute Name	Material Name
0/Solid	VOL1	001_Al *
1/Solid	VOL1	001_Al *

* Available from the material DB

Boundary Conditions

Boundary Condition Name/Topology	Tab	Boundary Condition Type	Settings
0degree/Face	Thermal	Temperature	0 [deg]
85degree/Face	Thermal	Temperature	85 [deg]
Hyper	Thermal	Adiabatic	Select [Uniform Temperature].

 

Results

The temperature distribution is shown below.

The temperatures of uniform temperature boundary conditions bearing the same name are supposed to be equal, even if they are set on the separate bodies.

The simulation results confirms that.

 

If the uniform temperature is deselected, the temperature distribution will look like below.

Each body reaches its own final temperature.