It adds q0 to the total flux across the selected boundaries. Enter a value for
q0 to represent a heat flux that enters the domain. For example, any electric heater is well represented by this condition, and its geometry can be omitted.
Enter a value for the Heat transfer coefficient h and an
External temperature,
Text. The value depends on the geometry and the ambient flow conditions. Convective heat flux is defined by
q0 = h(Text − T).
For Heat rate enter the heat rate
P0 across the boundaries where the
Heat Flux node is active. In this case
q0 = P0 ⁄ A, where
A is the total area of the selected boundaries.
The settings are the same as for the Heat Source node and are described under
Frame Selection.