Translations:FEM EquationHeat/16/en

Equation:
 * : The type of convection to be used in the heat equation.
 * : The model use for phase changes (ice to water etc.). The model  Spatial 1 is the apparent-heat-capacity method, Spatial 2 and Temporal are effective-heat-capacity methods. For more info about the models, see this paper (section 2.5.2.2) (is in German). In the paper it was also shown that Spatial 1 has numerical problems on larger temperature gradients and that Spatial 2 was preferred for the phase change ice to water.