FEM ConstraintHeatflux: Difference between revisions
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{{Docnav |
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|[[FEM_ConstraintInitialTemperature|Constraint initial temperature]] |
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|[[FEM_ConstraintTemperature|Constraint temperature]] |
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{{GuiCommand |
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{{GuiCommand|Name=FEM ConstraintHeatflux|MenuLocation=Model → Thermal Constraints → Constraint heatflux||Workbenches=[[Fem Workbench|FEM]]|Shortcut=|SeeAlso=[[FEM_tutorial|FEM tutorial]]}} |
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|Name=FEM ConstraintHeatflux |
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|MenuLocation=Model → Thermal Constraints → Constraint heatflux |
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==Description== <!--T:2--> |
==Description== <!--T:2--> |
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This constraint specifies film heat transfer of a surface at temperature ''T'' and with a film coefficient ''h'' to the environment or sink at temperature ''T<sub>0</sub> ''. The convective heat flux ''q'' will satisfy: '''''q = h(T -T<sub>0</sub>)''''' |
This constraint specifies film heat transfer of a surface at temperature ''T'' and with a film coefficient ''h'' to the environment or sink at temperature ''T<sub>0</sub> ''. The convective heat flux ''q'' will satisfy: '''''q = h(T -T<sub>0</sub>)''''' |
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==Usage== <!--T:3--> |
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# There are several ways to invoke the command: |
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#* Press the {{Button|[[Image:FEM_ConstraintHeatflux.svg|16px]] [[FEM_ConstraintHeatflux|ConstraintHeatflux]]}} button. |
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==Limitations== <!--T:4--> |
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#The constraint uses the *FILM card in CalculiX. The heatflux constraint is explained at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node203.html |
#The constraint uses the *FILM card in CalculiX. The heatflux constraint is explained at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node203.html |
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Revision as of 18:23, 26 February 2021
FEM ConstraintHeatflux |
Menu location |
---|
Model → Thermal Constraints → Constraint heatflux |
Workbenches |
FEM |
Default shortcut |
None |
Introduced in version |
- |
See also |
FEM tutorial |
Description
This constraint specifies film heat transfer of a surface at temperature T and with a film coefficient h to the environment or sink at temperature T0 . The convective heat flux q will satisfy: q = h(T -T0)
Usage
- There are several ways to invoke the command:
- Press the ConstraintHeatflux button.
- Select the Model → Thermal Constraints → Constraint heatflux option from the menu.
- In the 3D view select the face(s) the constraint should be applied to.
- Enter the desired surface temperature, film coefficient and environment temperature.
Notes
- The constraint uses the *FILM card in CalculiX. The heatflux constraint is explained at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node203.html
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