Visualizing the Water Film

Create three scalar scenes to visualize the water flowing down the inclined plane. One scene displays the film thickness in the fluid film regions and the second scene displays the surface of the rivulet volume in the VOF region. The third scene displays both the fluid film and VOF components.

  1. Create an isosurface with a volume fraction value of 0.5 that represents the VOF resolved water film surface:
    1. Right-click the Derived Parts node and select New > Isosurface.

      The Create Isosurface dialog appears in the Edit window.

    2. In the Input Parts box, select Body_1.
    3. Set the Scalar function to Volume Fraction > Volume Fraction of Water.
    4. Set the Extraction Mode to Single Value.
    5. Set the Isovalue to 0.5.
    6. In the Display group box, select No Displayer.
    7. Click Create and then click Close.

      A new derived part, Isosurface, is created.

Create the scalar scenes.
  1. Right-click the Scenes node, and select New > Scalar.
  2. Select the Scalar Scene 1 node and then set Mesh Override to Show All Meshes.
  3. Manipulate the scene to make the mesh orientation similar to the example below:


  4. Use the Copy and Paste features to create two more copies of Scalar Scene 1.
  5. Rename the scalar scenes as Fluid Film Scene, Resolved Water Scene, and Combined Scene.
Set up the first scalar scene to display the film thickness.
  1. Select the Fluid Film Scene node and set the following properties:
    Node Property Setting
    Fluid Film Scene Mesh Override Use Displayer Property
    Scalar 1 Contour Style Filled
    Display Mesh Enabled
    Parts Parts Regions > PartiallyWetSurface shell > Boundaries > Interface to Body 1 [In-place 1]
    Scalar Field Function Fluid Film Thickness
    Color Bar Orientation Vertical
    Position [0.05, 0.1]
Set up the second scalar scene to display the mesh outline of the resolved rivulet in the VOF region.
  1. Select the Resolved Water Scene node and set the following properties:
    Node Property Setting
    Outline 1 Opacity 0.6
    Color Mode Constant
    Mesh Color Mesh Color Sky Blue
    Parts Parts Derived Parts > Isosurface
Set up the third scalar scene to display both the liquid film and VOF components.
  1. Select the Combined Scene node and set the following properties:
    Node Property Setting
    Outline 1 Opacity 0.6
    Color Mode Constant
    Mesh Color Mesh Color Sky Blue
    Parts Parts Derived Parts > Isosurface
    Scalar 1 Contour Style Filled
    Parts Parts Regions > PartiallyWetSurface shell > Boundaries > Interface to Body 1 [In-place 1]
    Scalar Field Function Fluid Film Thickness
    Color Bar Orientation Vertical
    Position [0.05, 0.1]
  2. Save the simulation.