Selecting Fluid Film Models

The set of models that solve for the liquid film phase is specified within the Fluid Film model node. Here, you first define a fluid film phase and select appropriate physics models. You then assign the film phase to the shell region on the surface of the airfoil.

To define a fluid film phase:
  1. Expand the Continua > Physics 1 > Models > Fluid Film node.
  2. Right-click the Fluid Film Phases node and select New.
    A new node, Phase 1, is created within the Fluid Film Phases node.
  3. Rename Phase 1 to Film Phase.

Select the models for the film phase. Within this selection, activate the Melting-Solidification model that captures the solidification of water droplets into ice. To allow the Melting-Solidification model to track the liquid-solid interface, activate the Solidified Film Removal model.

  1. For the fluid film phase, Film Phase, select the following physics models:
    Group box Model
    Space Three Dimensional
    Enabled Models Segregated Fluid Film Temperature (selected automatically)
    Flow Model (selected automatically)
    Material Liquid
    Equation of State Constant Density
    Viscous Regime Laminar
    Optional Models

    Melting-Solidification

    Solidified Film Removal

  2. To review the models, expand the Fluid Film Phases > Film Phase > Models node.


As an initial condition for the fluid film phase, specify the temperature:
  1. Select the Film Phase > Initial Conditions > Static Temperature node and set Value to 258.4 K.