For User defined, enter a value or expression for the initial value of the
Temperature T (SI unit: K). The default value is approximately room temperature, 293.15 K (20ºC). Else, select an
Ambient temperature defined in an
Ambient Properties node under
Definitions.
Physics tab with interface as
Heat Transfer in Solids and Fluids, or any version of the Heat Transfer interface selected:
Physics tab with Porous Medium>Fluid or
Porous Medium>Porous Matrix selected in the model tree: