YEqn.H

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tmp<fv::convectionScheme<scalar>> mvConvection
(
    fv::convectionScheme<scalar>::New
    (
        mesh,
        fields,
        phi,
        mesh.divScheme("div(phi,Yi_h)")
    )
);
 
 
{
    combustion->correct();
    Qdot = combustion->Qdot();
    volScalarField Yt(0.0*Y[0]);
 
    forAll(Y, i)
    {
        if (i != inertIndex && composition.active(i))
        {
            volScalarField& Yi = Y[i];
 
            fvScalarMatrix YEqn
            (
                fvm::ddt(rho, Yi)
              + mvConvection->fvmDiv(phi, Yi)
              - fvm::laplacian(turbulence->muEff(), Yi)
              ==
                parcels.SYi(i, Yi)
              + fvOptions(rho, Yi)
              + combustion->R(Yi)
              + surfaceFilm.Srho(i)
            );
 
            YEqn.relax();
 
            fvOptions.constrain(YEqn);
 
            YEqn.solve(mesh.solver("Yi"));
 
            fvOptions.correct(Yi);
 
            Yi.max(0.0);
            Yt += Yi;
        }
    }
 
    Y[inertIndex] = scalar(1) - Yt;
    Y[inertIndex].max(0.0);
}