Setting Up the Plots

Create a plot to view the simulation results.

A line probe is created and used to extract data across the radius of the bubble column. When creating a derived part, Simcenter STAR-CCM+ automatically uses the active scene to display a preview of the part.

To set up the plots:

  1. Right-click the Derived Parts node and select New > Probe > Line Probe.
  2. In the Create Line Probe panel, do the following:
    1. Make sure that Default_Fluid is selected in the Input Parts box.
    2. Set the coordinates of Point 1 to [2.7, 0.0, 0.0] m.
    3. Set the coordinates of Point 2 to [2.7, 0.025, 0.0] m.
    4. In the Display box, select No Displayer.

      The panel appears as follows.



    5. Click Create and then Close.

The x-axis in the plots indicates the radial position of the data points in the pipe. For convenience, use the normalized radial position (r/R), which can be specified using a field function:

  1. Right-click the Automation > Field Functions node and select New > Scalar.
  2. Rename the User Field Function 1 node to Normalized Radial Position.
  3. Set the Function Name to Normalized Radial Position.
  4. Set the Definition to $$Position(@CoordinateSystem("Laboratory"))[1]/0.0254
    NoteTwo dollar symbols ($$) are used when referencing a position field function.


The plot can now be created.

  1. Click (Create/Open Plots) in the Plot toolbar and select XY Plot.
  2. Rename the Plots > XY Plot 1 node to Volume Fraction of Air.
  3. In the Parts property, click (Custom Editor).
    In the Volume Fraction of Air - Parts dialog, select Derived Parts > Line Probe.
  4. Select the Volume Fraction of Air > X Type node and set the Data Type to Scalar.
  5. Select the X Type > Scalar Function node and set the Field Function property to Normalized Radial Position.


  6. Select the Y Types > Y Type 1 > Scalar Function node.


  7. Set the Field Function property to Volume Fraction > Volume Fraction of Air.

The remaining plot shares many properties with the first plot, so you can copy and paste the original plot to create the remaining plot and change some of the properties as necessary:

  1. Right-click the Plots > Volume Fraction of Air node and select Copy, then right-click the Plots node and select Paste.
  2. Rename the new plot Axial Velocity of Air.
  3. Right-click the Plots node and select Refresh.


  4. Select the Axial Velocity of Air > Y Types > Y Type 1 > Scalar Function node and set the Field Function to Velocity > Velocity of Air > Lab Reference Frame > Laboratory > i.


  5. To open the plots, right-click the Plots node and select Open All Plots. Use the tabs at the top of the Graphics window to display each plot.
  6. Save the simulation.