Info<< "Reading field p_rgh\n" << endl;
volScalarField p_rgh   // define a scalar field 
(
    IOobject    // handle IO field operations in OF
    (
        "p_rgh",    // name of field
        runTime.timeName(),    // time step directory where the field is stored
        mesh,    //mesh associated with the field
        IOobject::MUST_READ,  //field should be read from disk
        IOobject::AUTO_WRITE  //field should be written to disk after current timestep
    ),
    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<< "Reading transportProperties\n" << endl;
immiscibleIncompressibleTwoPhaseMixture mixture(U, phi);
 
volScalarField& alpha1(mixture.alpha1());
volScalarField& alpha2(mixture.alpha2());
 
const dimensionedScalar& rho1 = mixture.rho1();
const dimensionedScalar& rho2 = mixture.rho2();
 
 
// Need to store rho for ddt(rho, U)
volScalarField rho
(
    IOobject
    (
        "rho",
        runTime.timeName(),
        mesh,
        IOobject::READ_IF_PRESENT
    ),
    alpha1*rho1 + alpha2*rho2
);
rho.oldTime();
 
 
// Mass flux
surfaceScalarField rhoPhi
(
    IOobject
    (
        "rhoPhi",
        runTime.timeName(),
        mesh,
        IOobject::NO_READ,
        IOobject::NO_WRITE
    ),
    fvc::interpolate(rho)*phi
);
 
 
// Construct incompressible turbulence model
autoPtr<incompressible::turbulenceModel> turbulence
(
    incompressible::turbulenceModel::New(U, phi, mixture)
);
 
 
#include "readGravitationalAcceleration.H"
#include "readhRef.H"
#include "gh.H"
 
 
volScalarField p
(
    IOobject
    (
        "p",
        runTime.timeName(),
        mesh,
        IOobject::NO_READ,
        IOobject::AUTO_WRITE
    ),
    p_rgh + rho*gh
);
 
label pRefCell = 0;
scalar pRefValue = 0.0;
setRefCell
(
    p,
    p_rgh,
    pimple.dict(),
    pRefCell,
    pRefValue
);
 
if (p_rgh.needReference())
{
    p += dimensionedScalar
    (
        "p",
        p.dimensions(),
        pRefValue - getRefCellValue(p, pRefCell)
    );
    p_rgh = p - rho*gh;
}
 
mesh.setFluxRequired(p_rgh.name());
mesh.setFluxRequired(alpha1.name());
 
// MULES flux from previous time-step
surfaceScalarField alphaPhi
(
    IOobject
    (
        "alphaPhi",
        runTime.timeName(),
        mesh,
        IOobject::READ_IF_PRESENT,
        IOobject::AUTO_WRITE
    ),
    phi*fvc::interpolate(alpha1)
);
 
// MULES Correction
tmp<surfaceScalarField> talphaPhiCorr0;
 
#include "createMRF.H"