Defining the Water Film and Air Phases

As the water phase can be represented in this simulation with either the VOF model or the Fluid Film model, the material properties of the Eulerian (VOF) water phase and the Fluid Film water phase must be the same.

To create the phases and select the phase models:

Create the VOF gas phase.
  1. In the Physics 1 continuum, right-click the Models > Multiphase > Phases node and select New.
  2. Rename the Phase 1 node to Air.
  3. For the Air phase, select the following models:
    Group Box Model
    Enabled Models

    Laminar (selected automatically)

    Material

    Gas

    Equation of State

    Constant Density

  4. Click Close.

Create the VOF liquid phase.

  1. Create a second Eulerian phase and rename it to Water.
  2. For the Water phase, select the following models:
    Group Box Model
    Enabled Models

    Laminar (selected automatically)

    Material

    Liquid

    Equation of State

    Constant Density

  3. Click Close.

Create the Fluid Film phase.

  1. In the Physics 1 continuum, right-click the Models > Fluid Film > Fluid Film Phases node and select New.
  2. Rename the Phase 1 node to WaterFilm.
  3. For the WaterFilm phase, select the following models in order:
    Group Box Model
    Space

    Three Dimensional

    Flow Model (selected automatically)

    Material

    Liquid

    Equation of State

    Constant Density

    Viscous Regime

    Laminar
  4. Click Close.
  5. Save the simulation.