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Film thickness measure in rotating disc

- December 12, 2025 at 9:09 pm
  
  uw24aac
  Subscriber
  
  Hi everyone,
  I’m using ANSYS Fluent with a VOF model for thin-film flow on a rotating disc. The simulation runs, but I don’t know how to extract and plot film thickness vs circumferential angle (θ) at a given radius.
  Can someone please explain the steps to create the interface surface and get the thickness-vs-theta plot?
  Thank you!
- December 15, 2025 at 10:19 am
  
  Rob
  Forum Moderator
  
  Assuming you've resolved the film sufficiently you need to create an iso-surface of volume fraction and an iso-surface of radial position. Once you have those two surfaces create a second iso-surface of one or the other whilst having the "other or one" selected. You'll finish up with a line that's common to both iso-surfaces: note the line is a surface (Fluent definition) but is fine to then graph on the xy plots.

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