In the case of two-phase flows, Autodesk® CFD assumes a homogeneous two-phase mixture. The energy equation that is used is written in terms of enthalpy. Temperature is determined using the thermodynamic tables. Both temperature and enthalpy results can be viewed in the Results dialog task (make sure both quantities are enabled on the Output Quantity dialog on the Solve dialog).
Boundary Conditions
Specify the Quality and static Temperature (as well as the appropriate velocity, flow-rate, or pressure) at all inlets. For example, quality is 0 for 100% liquid.
Materials
Select Steam (Saturated) or other saturated material from the Fluid list on the Material dialog. If the operating state differs from STP, open the Material Environment dialog from the Material branch of the Design Study bar, and modify the Pressure and Temperature. The properties of the material are determined during the analysis using the thermodynamic tables and the specified environment pressure.
Solve