createFields.H

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// add dummy U, phi, and laminarTransport
 
Time& runTime = runTimePtr_();
fvMesh& mesh = meshPtr_();
 
volVectorField U(
    IOobject(
        "U",
        mesh.time().timeName(),
        mesh,
        IOobject::NO_READ,
        IOobject::NO_WRITE),
    mesh,
    dimensionedVector("U", dimensionSet(0, 1, -1, 0, 0, 0, 0), vector::zero),
    zeroGradientFvPatchField<vector>::typeName);
 
// need the p field for DATurbulenceModel
volScalarField p(
    IOobject(
        "p",
        mesh.time().timeName(),
        mesh,
        IOobject::NO_READ,
        IOobject::NO_WRITE),
    mesh,
    dimensionedScalar("p", dimensionSet(0, 2, -2, 0, 0, 0, 0), 0.0),
    zeroGradientFvPatchField<scalar>::typeName);
 
#include "createPhi.H"
 
singlePhaseTransportModel laminarTransport(U, phi);
 
autoPtr<incompressible::turbulenceModel> turbulence(
    incompressible::turbulenceModel::New(U, phi, laminarTransport));