createFields.H

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

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

#include "createPhi.H"

Info<< "Constructing twoPhaseMixtureThermo\n" << endl;
twoPhaseMixtureThermo mixture(mesh);

volScalarField& alpha1(mixture.alpha1());
volScalarField& alpha2(mixture.alpha2());

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

volScalarField& rho1 = mixture.thermo1().rho();
volScalarField& rho2 = mixture.thermo2().rho();

volScalarField rho
(
    IOobject
    (
        "rho",
        runTime.timeName(),
        mesh,
        IOobject::READ_IF_PRESENT,
        IOobject::AUTO_WRITE
    ),
    alpha1*rho1 + alpha2*rho2
);


dimensionedScalar pMin
(
    "pMin",
    dimPressure,
    mixture
);

mesh.setFluxRequired(p_rgh.name());


#include "readGravitationalAcceleration.H"
#include "readhRef.H"
#include "gh.H"


// Mass flux
// Initialisation does not matter because rhoPhi is reset after the
// alpha1 solution before it is used in the U equation.
surfaceScalarField rhoPhi
(
    IOobject
    (
        "rhoPhi",
        runTime.timeName(),
        mesh,
        IOobject::NO_READ,
        IOobject::NO_WRITE
    ),
    fvc::interpolate(rho)*phi
);

volScalarField dgdt
(
    pos(alpha2)*fvc::div(phi)/max(alpha2, scalar(0.0001))
);

// Construct interface from alpha1 distribution
interfaceProperties interface(alpha1, U, mixture);

// Construct compressible turbulence model
autoPtr<compressible::turbulenceModel> turbulence
(
    compressible::turbulenceModel::New(rho, U, rhoPhi, mixture)
);

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