Info<< "Reading physicalProperties\n" << endl;

IOdictionary physicalProperties
(
    IOobject
    (
        "physicalProperties",
        runTime.constant(),
        mesh,
        IOobject::MUST_READ_IF_MODIFIED,
        IOobject::NO_WRITE
    )
);

dimensionedScalar epsilon0
(
    physicalProperties.lookup("epsilon0")
);

/*
dimensionedScalar k
(
    physicalProperties.lookup("k")
);
*/


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


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


Info<< "Creating field electric field\n" << endl;
volVectorField E
(
    IOobject
    (
        "E",
        runTime.timeName(),
        mesh,
        IOobject::NO_READ,
        IOobject::AUTO_WRITE
    ),
    -fvc::grad(Phi)
);

surfaceScalarField snE
(
    IOobject
    (
        "snE",
        runTime.timeName(),
        mesh,
        IOobject::NO_READ,
        IOobject::AUTO_WRITE
    ),
    -fvc::snGrad(Phi)
);