14.6. Non-equilibrium Wet Steam Model for Steam Turbines

Modeling wet steam is very important in the analysis and design of steam turbines. The increase in steam turbine exit wetness can cause severe erosion to the turbine blades at the low-pressure stages, and a reduction in aerodynamic efficiency of the turbine stages operating in the wet steam region.

You can choose the wet steam model (see Wet Steam Model Theory in the Theory Guide) by opening the Multiphase Model dialog box and selecting the Wet Steam option.

See Setting Up the Wet Steam Model for information on available options.

Currently supported for use with Non-equilibrium Wet Steam Model include:

  • Both pressure-based and density-based solvers.

  • Phase-lag Method.

 Physics Models Multiphase

Figure 14.17: The Multiphase Model Dialog Box with the Wet Steam Model Selected (Pressure-Based)

The Multiphase Model Dialog Box with the Wet Steam Model Selected (Pressure-Based)

Figure 14.18: The Multiphase Model Dialog Box with the Wet Steam Model Selected (Density-Based)

The Multiphase Model Dialog Box with the Wet Steam Model Selected (Density-Based)