[maybee]

hi,
I have a few questions about the multiphaseEuler solver:

1. Within the main method of the solvers .C file there is the file "createFields.H" included. Within this file can be found

forAllIter(PtrDictionary<phaseModel>, fluid.phases(), iter)     
    {
        phaseModel& phase = iter();                 

        const volScalarField& alpha = phase;    

        U += alpha*phase.U();  

        phi += fvc::interpolate(alpha)*phase.phi();  
   }

with the method iter():

inline Foam::label Foam::cloudSolution::iter() const   //Return const access to the current 
                                                                //cloud iteration.
{
return iter_;   //label iter_;  //- Current cloud iteration
}

I assume that alpha is one phase fraction, right?
Furthermore alpha is a reference to iter() which means a reference to the variable iter_ . But, what is iter_ exactly?

2. After the solvers loop is started later in the main method with "while (runTime.run())" at which point are the phase fractions calculated and saved?

greetings
maybee

[Elol]

Hi Foamers,

I have almost the same question as I don't fully unterstand what is the iter(). I have the following piece of code which I am trying to understand

void Foam::multiphaseDriftMixture::calcAlphas()
{
    alphas_ == 0.0;

    forAllIter(PtrDictionary<phaseDrift>, phasesk_, iter) //Iterate across all elments in the Phasesk_ (transport prorties) which is type from PtrDictionary<phaseDrift>
    {
        alphas_ += iter(); // alphas_ = alphas_ + iter()
    }
}

what i understand that the for loop is looping on the Container type (phase drift dictionary) and phasesk contatiner and iter. alphas_ starts with 0.0 + iter()
what is the iter()?