MANUAL Fluent 5
Limits Of VOF Model
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Fluent's Manual specifications
Encountered problems :(to
be completed during future session)
The flow must be incompressible.
Heat transfer modeling is not available with the VOF model
No use of periodic conditions.
No reacting flow, no species mixing, no LES, no phase change model.
Very long computations : it is advised to start iterate
(for instance 10000 time steps...) at the end of seance (near 18h), and
to enable Autosave (File->Write->Autosave).
The Implicit VOF Scheme is hard to set : the calculation
converge, but the solution is not very physic.
In theory, the VOF model has to be use with auto-adaptative
meshes. But the way to adapt a mesh with Fluent can't be "auto", so you
have two choice : adapting your self every n time-steps, or doing an initial
mesh with little cells (typically, for one bubble 100 cells).