tmp<fv::convectionScheme<scalar>> mvConvection
(
    fv::convectionScheme<scalar>::New//convectionScheme:Abstract base class for convection schemes.
    (
        mesh,
        fields,
        alpha2rho2phi,
        mesh.divScheme("div(alpha2rho2phi,Yi)")
    )
);

{
    forAll(Y, i)
    {
        if (i != inertIndex && composition.active(i))
        {
            volScalarField& Yi = Y[i];

            fvScalarMatrix YEqn
            (
                fvm::ddt(alpha2rho2, Yi)
              + mvConvection->fvmDiv(alpha2rho2phi, Yi)
              - fvm::laplacian(turbulence.muEff()*alpha2, Yi)
             ==
                alpha2*parcels.SYi(i, Yi) 
              + fvOptions(rho2, Yi)
            );

            YEqn.relax();

            fvOptions.constrain(YEqn);

            YEqn.solve(mesh.solver("Yi"));

            fvOptions.correct(Yi);

            Yi.max(0.0);
            Yt += Yi;
        }

    Y[inertIndex] = scalar(1) - Yt;
    Info<<"info::inertIndex.................="<< inertIndex <<endl;
    Info<<"info::Y[inertIndex].................="<< max(Y[inertIndex]) <<endl;
    Y[inertIndex].max(0.0);

我在createField.H中声明了下列变量：

volScalarField alpha2rho2
(
   IOobject
   (
       "alpha2rho2",
       runTime.timeName(),
       mesh,
       IOobject::READ_IF_PRESENT,
       IOobject::AUTO_WRITE
   ),
   alpha2*rho2
);

 surfaceScalarField alpha2rho2phi
 (
     IOobject
     (
         "alpha2rho2phi",
         runTime.timeName(),
         mesh,
         IOobject::READ_IF_PRESENT,
         IOobject::AUTO_WRITE
     ),
     linearInterpolate(alpha2*rho2*U) & mesh.Sf()
 );

rhoReactionThermo& thermo2 = mixture.thermo2();

basicSpecieMixture& composition = thermo2.composition();
PtrList<volScalarField>& Y = composition.Y();

const word inertSpecie(thermo2.lookup("inertSpecie"));
if (!composition.species().found(inertSpecie))
{
   FatalIOErrorIn(args.executable().c_str(), thermo2)
       << "Inert specie " << inertSpecie << " not found in available species "
       << composition.species()
       << exit(FatalIOError);
}

const label inertIndex(composition.species()[inertSpecie]);

multivariateSurfaceInterpolationScheme<scalar>::fieldTable fields;

forAll(Y, i)
{
   fields.add(Y[i]);
}

surfaceScalarField alpharho2
(
   IOobject
   (
       "alphaRho2Phi",
       runTime.timeName(),
       mesh,
       IOobject::READ_IF_PRESENT,
       IOobject::AUTO_WRITE
   ),
   alpha2*rho2
);

surfaceScalarField alphaRho2Phi
(
   IOobject
   (
       "alphaRho2Phi",
       runTime.timeName(),
       mesh,
       IOobject::READ_IF_PRESENT,
       IOobject::AUTO_WRITE
   ),
   fvc::interpolate(alpha2*rho2)*phi
);