Info<< "Reading thermophysical properties\n" << endl;

    autoPtr<psiThermo> pThermo
    (
        psiThermo::New(mesh)
    );
    psiThermo& thermo = pThermo();
    thermo.validate(args.executable(), "h", "e");
    volScalarField& p = thermo.p();

    Info<< "Reading field rho\n" << endl;
    volScalarField rho
    (
        IOobject
        (
            "rho",
            runTime.timeName(),
            mesh,
            IOobject::READ_IF_PRESENT,
            IOobject::AUTO_WRITE
        ),
        thermo.rho()
    );


    Info<< "Reading field U\n" << endl;
    volVectorField U
    (
        IOobject
        (
            "U",
            runTime.timeName(),
            mesh,
            IOobject::MUST_READ,
            IOobject::AUTO_WRITE
        ),
        mesh
    );

    Info<< "\nReading voidfraction field voidfraction = (Vgas/Vparticle)\n" << endl;
    volScalarField voidfraction
    (
        IOobject
        (
            "voidfraction",
            runTime.timeName(),
            mesh,
            IOobject::MUST_READ,
            IOobject::AUTO_WRITE
        ),
        mesh
    );

    volScalarField addSource
    (
        IOobject
        (
           "addSource",
           runTime.timeName(),
           mesh,
           IOobject::MUST_READ,
           IOobject::AUTO_WRITE
        ),
        mesh
    );

    Info<< "\nCreating fluid-particle heat flux field\n" << endl;
    volScalarField Qsource
    (
        IOobject
        (
            "Qsource",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::AUTO_WRITE
        ),
        mesh,
        dimensionedScalar("zero", dimensionSet(1,-1,-3,0,0,0,0), 0.0)
    );

    Info<< "\nCreating fluid-particle heat flux coefficient field\n" << endl;
    volScalarField QCoeff
    (
        IOobject
        (
            "QCoeff",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::AUTO_WRITE
        ),
        mesh,
        dimensionedScalar("zero", dimensionSet(1,-1,-3,-1,0,0,0), 0.0)
    );

    Info<< "\nCreating thermal conductivity field\n" << endl;
    volScalarField thCond
    (
        IOobject
        (
            "thCond",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::AUTO_WRITE
        ),
        mesh,
        dimensionedScalar("zero", dimensionSet(1,1,-3,-1,0,0,0), 0.0)
    );

    Info<< "\nCreating heat capacity field\n" << endl;
    volScalarField Cpv
    (
        IOobject
        (
            "Cpv",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::AUTO_WRITE
        ),
        mesh,
        dimensionedScalar("zero", dimensionSet(0,2,-2,-1,0,0,0), 0.0)
    );

    Info<< "\nCreating body force field\n" << endl;
    volVectorField fOther
    (
        IOobject
        (
            "fOther",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::NO_WRITE
        ),
        mesh,
        dimensionedVector("zero", dimensionSet(1,-2,-2,0,0,0,0), vector::zero)
    );

    Info<< "Reading/calculating face flux field phi\n" << endl;
    surfaceScalarField phi
    (
        IOobject
        (
            "phi",
            runTime.timeName(),
            mesh,
            IOobject::READ_IF_PRESENT,
            IOobject::AUTO_WRITE
         ),
         linearInterpolate(rho*U*voidfraction) & mesh.Sf()
    );

    dimensionedScalar rhoMax
    (
        dimensionedScalar::lookupOrDefault
        (
            "rhoMax",
            simple.dict(),
            dimDensity,
            GREAT
        )
    );

    dimensionedScalar rhoMin
    (
        dimensionedScalar::lookupOrDefault
        (
            "rhoMin",
            simple.dict(),
            dimDensity,
            0
        )
    );

    Info<< "Creating turbulence model\n" << endl;
    autoPtr<compressible::turbulenceModel> turbulence
    (
        compressible::turbulenceModel::New
        (
            rho,
            U,
            phi,
            thermo
        )
    );

    label pRefCell = 0;
    scalar pRefValue = 0.0;
    setRefCell(p, simple.dict(), pRefCell, pRefValue);

    mesh.setFluxRequired(p.name());

    Info<< "Creating field dpdt\n" << endl;
    volScalarField dpdt
    (
        IOobject
        (
            "dpdt",
            runTime.timeName(),
            mesh
        ),
        mesh,
        dimensionedScalar("dpdt", p.dimensions()/dimTime, 0)
    );

    Info<< "Creating field kinetic energy K\n" << endl;
    volScalarField K("K", 0.5*magSqr(U));

    Info<< "\nReading momentum exchange field Ksl\n" << endl;
    volScalarField Ksl
    (
        IOobject
        (
            "Ksl",
            runTime.timeName(),
            mesh,
            IOobject::MUST_READ,
            IOobject::AUTO_WRITE
        ),
        mesh
        //dimensionedScalar("0", dimensionSet(1, -3, -1, 0, 0), 1.0)
    );


    Info<< "Reading particle velocity field Us\n" << endl;
    volVectorField Us
    (
        IOobject
        (
            "Us",
            runTime.timeName(),
            mesh,
            IOobject::MUST_READ,
            IOobject::AUTO_WRITE
        ),
        mesh
    );

//===============================