FEM ConstraintHeatflux

    From FreeCAD Documentation

    FEM ConstraintHeatflux.svg FEM ConstraintHeatflux

    Menu location
    Model → Thermal Constraints → Constraint heatflux
    Default shortcut
    Introduced in version
    See also
    FEM tutorial


    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)


    1. There are several ways to invoke the command:
      • Press the FEM ConstraintHeatflux.svg FEM ConstraintHeatflux button.
      • Select the Model → Thermal Constraints → FEM ConstraintHeatflux.svg 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, heat transfer coefficient and environment temperature.