[Divyaprakash]

I have a few question regarding fvOptions. My question has two parts.

PART 1:

In the following code

 

codedSource
{
...
codeAddSup // source term
    #{
 const labelList& cells = this->cells();
vectorField& USource = eqn.source(); 
for(auto cell : cells)         { 
USource[cell].x() = 1.0; 
USource[cell].y() = 0.0; 
USource[cell].z() = 0.0; 
} 
Info << USource << endl; 
 Info << eqn.source() << endl;
#};
...
}

The above two outputs are different and I am unable to understand why.


PART 2:

I also have a query below. Let's say I have modified my equation as below in mySolver.C by adding mySource, which I have also added in createFields.H

fvVectorMatrix UEqn
(
    fvm::ddt(U) + fvm::div(phi, U)
  + MRF.DDt(U)
  + turbulence->divDevReff(U) 

  + mySource

 ==
    fvOptions(U)
);

Then is it possible to modify the value of mySource using fvOptions?

I tried the following but it didn't work.

codedSource
{
    type            vectorCodedSource;
    selectionMode   cellSet;
    cellSet         box1;

    fields          (mySource);
    name            sourceTime;

    codeConstrain //constrain
    #{
        return;
    #};

    codeCorrect //correct
    #{
        const labelList& cells = this->cells();
        for(auto cell : cells)
        {
            fld[cell].x() = 1.0;
        }
    #};

I thought that "fields (mySource)" would give me access to the field for modification, but I don't think that happens. In fact nothing happens and no values are written to mySource, instead I get a warning
" Source codedSource defined for field mySource but never use".

Thank you!