FEM ConstraintBodyHeatSource: Difference between revisions

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|MenuLocation= Model → Thermal Constraints → Constraint body heat source
|MenuLocation= Model → Thermal Constraints → Constraint body heat source
|Workbenches=[[FEM_Workbench|FEM]]
|Workbenches=[[FEM_Workbench|FEM]]
|Version=0.19
|SeeAlso=[[FEM_tutorial|FEM tutorial]]
|SeeAlso=[[FEM_tutorial|FEM tutorial]]
}}
}}
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Defines an internally generated body heat given in W/kg (not J/m³).
Defines an internally generated body heat given in W/kg.


==Usage== <!--T:9-->
==Usage== <!--T:9-->


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# Either press the {{Button|[[Image:FEM_ConstraintBodyHeatSource.svg|16px]] '''FEM_ConstraintBodyHeatSource'''}} or select the menu {{MenuCommand|Model → Thermal Constraints → [[Image:FEM_ConstraintBodyHeatSource.svg|16px]] Constraint body heat source}}.
# There are several ways to invoke the command:
# Set the value:
#* Press the {{Button|[[Image:FEM_ConstraintBodyHeatSource.svg|16px]] [[FEM_ConstraintBodyHeatSource|FEM ConstraintBodyHeatSource]]}} button.
#* {{VersionPlus|1.0}}: For a 3D analysis, select a 'solid' (body) from your model, for a 2D analysis select a face.
#* Select the {{MenuCommand|Model → Thermal Constraints → [[Image:FEM_ConstraintBodyHeatSource.svg|16px]] Constraint temperature}} option from the menu.
#* {{VersionMinus|0.20}}: Since the constraint has no task dialog, use the [[Property_editor|property editor]] and set the property {{PropertyData|Heat Source}}.
# In the [[3D_view|3D view]] select the objects the constraint should be applied to, which can be a vertices (corners), edges, or faces.

# Enter a specific heat value to apply to the objects.
==Limitation==

{{VersionMinus|0.20}}: The body heat source is applied to the whole model, meaning all bodies of the setup. It is not possible to select an individual body.


==Notes== <!--T:10-->
==Notes== <!--T:10-->


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* This constraint works only with the Elmer solver.
* For more information see [https://forum.freecadweb.org/viewtopic.php?f=18&t=44705&start=490#p422539 this forum thread] and following posts.
* For more information see [https://forum.freecadweb.org/viewtopic.php?f=18&t=44705&start=490#p422539 this forum thread] and following posts. [https://forum.freecadweb.org/viewtopic.php?f=18&t=28926 This thread] may also be useful.
* Elmer examples can also be found in [https://www.nic.funet.fi/pub/sci/physics/elmer/doc/ElmerTutorials.pdf Elmer GUI Tutorials].
* Elmer examples can also be found in [https://www.nic.funet.fi/pub/sci/physics/elmer/doc/ElmerTutorials.pdf Elmer GUI Tutorials].



Revision as of 01:18, 15 August 2022

FEM ConstraintBodyHeatSource

Menu location
Model → Thermal Constraints → Constraint body heat source
Workbenches
FEM
Default shortcut
None
Introduced in version
0.19
See also
FEM tutorial

Description

Defines an internally generated body heat given in W/kg.

Usage

  1. Either press the FEM_ConstraintBodyHeatSource or select the menu Model → Thermal Constraints → Constraint body heat source.
  2. Set the value:
    • version 1.0 and above: For a 3D analysis, select a 'solid' (body) from your model, for a 2D analysis select a face.
    • version 0.20 and below: Since the constraint has no task dialog, use the property editor and set the property DataHeat Source.

Limitation

version 0.20 and below: The body heat source is applied to the whole model, meaning all bodies of the setup. It is not possible to select an individual body.

Notes