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multiphaseEulerFoam: scalarCoeffSymmTable::const_iterator cAlpha in solveAlphase()

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Old   January 13, 2014, 06:30
Default multiphaseEulerFoam: scalarCoeffSymmTable::const_iterator cAlpha in solveAlphase()
  #1
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hi,

in method solveAlphas() of multiphasesystem.C of multiphaseEulerFoam is found:

Question 1:

Code:
scalarCoeffSymmTable::const_iterator cAlpha                                                                                          
            (                                                                                                                                                                 
                cAlphas_.find(interfacePair(phase1, phase2))  //scalarCoeffSymmTable cAlphas_;                                                                                                                                                                        
            );                                                                     //in multiphasesystem.H
Am I right that in "cAlphas_" is searched for the "interfacePair(phase1, phase2) entry" and if found/existant "scalarCoeffSymmTable::const_iterator cAlpha" is set to the position of the pair?

Question 2:

Later on the following line appears:

Code:
 phir += min(cAlpha()*phic, max(phic))*nHatf(phase1, phase2);
with the operator ():

Code:
inline T& Foam::HashTable<T, Key, Hash>::operator()(const Key& key) //Find and return a hashedEntry, create it null if not present.
146*{
147* iterator iter = this->find(key);
148*
149* if (iter == this->end())
150* {
151* this->insert(key, T());
152* return *find(key);
153* }
154* else
155* {
156* return *iter;
157* }
158*}
Is this the right operator () ? and what is exactly the "key" since the operator is called on "scalarCoeffSymmTable::const_iterator cAlpha" (see first code snippet)?

greetings
maybee
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Old   September 16, 2015, 14:43
Question multiphaseSystem::solveAlphas() - How does it work?
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Jaka Peternel
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I am also interested in this part of the code, just working through the solveAlphas() method to get good understanding of how openfoam calculates transport of alphas.

Is there any book or an article describing the method used for this calculations?

P.S.:
link to source file, line 59

Cheers,
Jaka
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