[maybee]

hi,

I have looked up now several multiphase tutorial cases and within the 0 folders are some kind of phase fraction fields (alpha) already stored (E.g. tutorial case bubbleColumn of multiphaseEulerFoam.)

My questions are...

1. How can the fields (internal fields) have been described without running "blockMesh" before and therefore not knowing the mesh-structure and cell-numbers?

2. If this is some kind of special procedure - how does it work and where are the fields read and stored in multiphaseEulerFoam?

Edit:

3. Most importantly: Can I access the phasefraction fields of each phase by doing

PtrDictionary<phaseModel>& PhasesPtrDictionary = fluid.phases();
wordList Phasenames 
(
    PhasesPtrDictionary.toc()
); 
for (int currentLoopPass = 0; currentLoopPass <= 5; currentLoopPass++ )
{
word actualPhase = Phasenames[currentLoopPass];
phaseModel* ActualPhase = PhasesPtrDictionary.lookupPtr(actualPhase);
volScalarField& AlphaActualPhase = *ActualPhase;
}

?

greetings
maybee