Number of Phases in VOF based flow boiling simulation on Ansys Fluent? -- CFD Online Discussion Forums

July 25, 2024, 12:29	Number of Phases in VOF based flow boiling simulation on Ansys Fluent?	#1
Samia_Sadaf New Member Samia Sadaf Join Date: Feb 2024 Posts: 11 Rep Power: 2	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

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