FEM ConstraintHeatflux: Difference between revisions
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{{docnav|[[FEM_ConstraintInitialTemperature|Constraint initial temperature]]|[[FEM_ConstraintTemperature|Constraint temperature]]|[[FEM_Module|FEM]]|IconL=FEM_ConstraintInitialTemperature.png|IconC=Workbench_FEM.svg|IconR=FEM_ConstraintTemperature.png}} |
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{{GuiCommand|Name=FEM ConstraintHeatflux|MenuLocation=Model → Thermal Constraints → Constraint heatflux||Workbenches=[[Fem Workbench|FEM]]|Shortcut=|SeeAlso=[[FEM_tutorial|FEM tutorial]]}} |
{{GuiCommand|Name=FEM ConstraintHeatflux|MenuLocation=Model → Thermal Constraints → Constraint heatflux||Workbenches=[[Fem Workbench|FEM]]|Shortcut=|SeeAlso=[[FEM_tutorial|FEM tutorial]]}} |
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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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==Use== <!--T:3--> |
==Use== <!--T:3--> |
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#Click on [[Image:FEM ConstraintHeatflux.png|32px]] or choose {{KEY|Model}} → '''Thermal Constraints''' → {{KEY|[[Image:FEM ConstraintHeatflux.png|32px]] Constraint heatflux}} from the top menu. |
#Click on [[Image:FEM ConstraintHeatflux.png|32px]] or choose {{KEY|Model}} → '''Thermal Constraints''' → {{KEY|[[Image:FEM ConstraintHeatflux.png|32px]] Constraint heatflux}} from the top menu. |
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#Select in the 3D-view the surface(s) the constraint should be applied to. |
#Select in the 3D-view the surface(s) the constraint should be applied to. |
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==Notes== <!--T:5--> |
==Notes== <!--T:5--> |
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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 11:32, 11 February 2019
|
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| 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)
Use
- Click on
or choose Model → Thermal Constraints → Constraint heatflux from the top menu. - Select in the 3D-view the surface(s) the constraint should be applied to.
- Enter the desired surface temperature, film coefficient and environment temperature.
Limitations
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
FEM
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