[Martin_K_lalelu]

Hi all,

to modify the multiphaseInterFoam solver I'm trying to use alpha.water in the UEqn.
How can I adress it?

My approach:

 volScalarField& alphaWater = objectRegistry::lookupObject<volScalarField>("alpha.water");

Any advices, explanations or links to understand how to read values out of fields will be appreciated!

Edit:
Compilation error:

cannot call member function ‘const Type& Foam:bjectRegistry::lookupObject(const Foam::word&) const [with Type = Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>]’ without object

[bbita]

Hi Martin,

Could you find answer to your question? I am trying to address alpha of my first phase.

Thanks

[MrFyzzix]

I am struggling with the same problem. Any help would be welcome!

[bbita]

Hi Gary,

You have to include your changes e.g. new parameter in multiphaseMixture.

[MrFyzzix]

Thanks for your comment, bbita. I tried it, but I did not get it to work. I am not an experienced programmer. Could you show me how you solved it?

[bbita]

Hi gary,

It completely depends on the changes you want to apply in your code. I suggest you to understand different sections in the file. For instance, if you want to add a new parameter, you can do that similar to the way that rho is defined.

[jpeter3]

Hay!

If i remember correctly, in interMultiphaseFoam, all the phase fields are stored in phases_ of multiphaseMixture.

So accessing one of them would probably look like:

volScalarField& alphaWater= mixture.phases()["water"];

mixture - name of multiphaseMixture class
phases() - returns PtrDictionary<phase> phases_
["sth"] - looks if there is a phase that has a name "sth" in phases_, and returns it


hope it helps