FEM ConstraintHeatflux: Difference between revisions

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|[[FEM_ConstraintTemperature|Constraint temperature]]
|[[FEM_ConstraintTemperature|Constraint temperature]]
|[[FEM_Module|FEM]]
|[[FEM_Module|FEM]]
|IconL=FEM_ConstraintInitialTemperature.png
|IconL=FEM_ConstraintInitialTemperature.svg
|IconR=FEM_ConstraintTemperature.svg
|IconC=Workbench_FEM.svg
|IconC=Workbench_FEM.svg
|IconR=FEM_ConstraintTemperature.png
}}
}}


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<!--T:7-->
<!--T:7-->
#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.svg|32px]] or choose {{KEY|Model}} → '''Thermal Constraints''' → {{KEY|[[Image:FEM_ConstraintHeatflux.svg|32px]] Constraint heatflux}} from the top menu.
#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.
#Enter the desired surface temperature, film coefficient and environment temperature.
#Enter the desired surface temperature, film coefficient and environment temperature.
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|[[FEM_ConstraintTemperature|Constraint temperature]]
|[[FEM_ConstraintTemperature|Constraint temperature]]
|[[FEM_Module|FEM]]
|[[FEM_Module|FEM]]
|IconL=FEM_ConstraintInitialTemperature.png
|IconL=FEM_ConstraintInitialTemperature.svg
|IconR=FEM_ConstraintTemperature.svg
|IconC=Workbench_FEM.svg
|IconC=Workbench_FEM.svg
|IconR=FEM_ConstraintTemperature.png
}}
}}



Revision as of 23:41, 27 November 2020

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

  1. Click on or choose ModelThermal Constraints Constraint heatflux from the top menu.
  2. Select in the 3D-view the surface(s) the constraint should be applied to.
  3. Enter the desired surface temperature, film coefficient and environment temperature.

Limitations

Notes

  1. 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