Evaluating a Property Function in a Physics Interface
The functions set up using a thermodynamic system in Thermodynamics can be used directly in any physics interfaces in COMSOL Multiphysics, in the same way as for standard functions. Simply type in the function name with the proper arguments in the appropriate field of the model to use the function. Figure 2-28 shows an example of this from the Reaction Engineering interface. In this example, the Species Thermodynamic Expressions section gets input for the molar entropy, the enthalpy and the heat capacity of toluene. These functions, generated using Species Property for a thermodynamic system containing toluene, have been entered in the corresponding input fields using the appropriate arguments.
Figure 2-28: The enthalpy and heat capacity of toluene are evaluated using property calculations through a thermodynamics system. In this case, the functions are temperature and pressure dependent properties for a pure component.