Number of Phases in VOF based flow boiling simulation on Ansys Fluent?

- July 25, 2024 at 3:25 pm
  
  samiasadaf_uetian
  Subscriber
  
  I am simulating water flow boiling through rectangular microchannel using Multiphase VOF model (evaporation-Condensation Mechanism)
  
  Why we have to take number of eulerian phases =3
  i.e. Air as Primary phase, Liquid water and Liquid Vapor as Secondary phases.
  
  Can't we take 2 i.e. Water-Liquid as 'Primary Phase' and Water-Vapor as ' Secondary Phase' (as I see no boiling with 2 phases)
  
  Please guide
  
  Thanks in advance
- July 25, 2024 at 3:31 pm
  
  Rob
  Forum Moderator
  
  You have two phases, of which the vapour phase contains two species.