FEM ConstraintHeatflux

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Next: Constraint temperature

FEM

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. There are several ways to invoke the command:
   • Press the FEM ConstraintHeatflux button.
   • Select the Model → Thermal Constraints → Constraint heatflux option from the menu.
2. In the 3D view select the face(s) the constraint should be applied to.
3. Enter the desired surface temperature, film coefficient and environment temperature.

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

Previous: Constraint initial temperature

Next: Constraint temperature

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