Info<< "Constructing single cell mesh" << nl << endl;

LinearMesh lMesh(0, 1, 100);

pointField CMCPoints(lMesh.points());
faceList CMCFaces(lMesh.faces());
labelList CMCOwners(lMesh.owner());
labelList CMCNeighbors(lMesh.neighbour());

fvMesh mfMesh
(
    IOobject
    (
        "mfSpace",
        runTime.timeName(),
        runTime,
        IOobject::READ_IF_PRESENT
    ),
    xferMove<Field<vector>>(CMCPoints),
    CMCFaces.xfer(),
    CMCOwners.xfer(),
    CMCNeighbors.xfer()
);

if (mfMesh.boundaryMesh().empty())
{
    List<polyPatch*> mfPatches(3);

    mfPatches[0] = new polyPatch
    (
        lMesh.patchName(0),
        lMesh.patchSize(0),
        lMesh.patchStartIndex(0),
        0,
        mfMesh.boundaryMesh(),
        polyPatch::typeName
    );

    mfPatches[1] = new polyPatch
    (
        lMesh.patchName(1),
        lMesh.patchSize(1),
        lMesh.patchStartIndex(1),
        1,
        mfMesh.boundaryMesh(),
        polyPatch::typeName
    );

    mfPatches[2] = new emptyPolyPatch
    (
        lMesh.patchName(2),
        lMesh.patchSize(2),
        lMesh.patchStartIndex(2),
        2,
        mfMesh.boundaryMesh(),
        emptyPolyPatch::typeName
    );

    mfMesh.addFvPatches(mfPatches);
}

IStringStream tempStream("3(fixedValue fixedValue empty)");
wordList testEtaPatchTypeNames(tempStream);

volScalarField testEtaMesh
(
    IOobject
    (
        "testEtaMesh",
        runTime.timeName(),
        mfMesh,
        IOobject::NO_READ,
        IOobject::AUTO_WRITE
    ),
    mfMesh,
    dimensionedScalar("testEtaMesh", dimless, 1.0),
    testEtaPatchTypeNames
);

const volVectorField &cEtaMesh(mfMesh.C());
forAll(cEtaMesh, celli)
{
    const scalar x = cEtaMesh[celli].x();
    if (x > 0.5)
    {
        testEtaMesh[celli] = 1.0;
    }
    else
    {
        testEtaMesh[celli] = 0.0;
    }
    
}

volScalarField DQi
(
    IOobject
    (
        "DQi",
        runTime.timeName(),
        mfMesh,
        IOobject::NO_READ,
        IOobject::NO_WRITE
    ),
    mfMesh,
    dimensionedScalar("DQi", dimArea/dimTime, 0.01),
    testEtaPatchTypeNames
);

PtrList<PtrList<volScalarField> > FStruct (nf);
for(label k = 0 ; k < nf ; k++)
{
    FStruct.set (k, new PtrList<volScalarField> (Ysize+3));

    PtrList<volScalarField> &Fk(FStruct[k]);
    Info << Fk.size() << endl;
    for (label i = 0; i < Ysize + 3; i++)
    {
        Fk.set (i,
            new volScalarField 
            (
                IOobject
                (
                    "test",
                    runTime.timeName(),
                    mfMesh,
                    IOobject::NO_READ,
                    IOobject::AUTO_WRITE
                ),
                mfMesh,
                dimensionedScalar("test", dimless, 0.0),
                testEtaPatchTypeNames
            )
        );

    }
}

for(label k = 0 ; k < nf ; k++)
{
    for (label i = 0; i < Ysize + 3; i++)
    {
        FStruct[k][i].rename("test."+name(k)+"."+name(i));
    }
}