STYLE: use calculatedType() and zeroGradientType() methods

2025-11-28 03:28:01 +00:00 · 2023-04-24 16:18:05 +02:00
parent 09ce87135b
commit e967305ef2
88 changed files with 165 additions and 212 deletions
--- a/applications/solvers/compressible/rhoPimpleFoam/overRhoPimpleDyMFoam/correctPhi.H
+++ b/applications/solvers/compressible/rhoPimpleFoam/overRhoPimpleDyMFoam/correctPhi.H
@ -29,7 +29,7 @@ if (mesh.changing())
    wordList pcorrTypes
    (
        p.boundaryField().size(),
-        zeroGradientFvPatchScalarField::typeName
+        fvPatchFieldBase::zeroGradientType()
    );

    // Set BCs of pcorr to fixed-value for patches at which p is fixed
--- a/applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleDyMFoam/correctPhi.H
+++ b/applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleDyMFoam/correctPhi.H
@ -29,7 +29,7 @@ if (mesh.changing())
    wordList pcorrTypes
    (
        p.boundaryField().size(),
-        zeroGradientFvPatchScalarField::typeName
+        fvPatchFieldBase::zeroGradientType()
    );

    // Set BCs of pcorr to fixed-value for patches at which p is fixed
--- a/applications/solvers/heatTransfer/chtMultiRegionFoam/solid/createSolidFields.H
+++ b/applications/solvers/heatTransfer/chtMultiRegionFoam/solid/createSolidFields.H
@ -57,7 +57,7 @@
                    ),
                    solidRegions[i],
                    dimensionedSymmTensor(tkappaByCp().dimensions(), Zero),
-                    zeroGradientFvPatchSymmTensorField::typeName
+                    fvPatchFieldBase::zeroGradientType()
                )
            );

--- a/applications/solvers/heatTransfer/solidFoam/createFields.H
+++ b/applications/solvers/heatTransfer/solidFoam/createFields.H
@ -34,7 +34,7 @@ if (!thermo.isotropic())
            ),
            mesh,
            dimensionedSymmTensor(tkappaByCp().dimensions(), Zero),
-            zeroGradientFvPatchSymmTensorField::typeName
+            fvPatchFieldBase::zeroGradientType()
        )
    );
    volSymmTensorField& aniAlpha = *taniAlpha;
--- a/applications/solvers/incompressible/pimpleFoam/overPimpleDyMFoam/correctPhi.H
+++ b/applications/solvers/incompressible/pimpleFoam/overPimpleDyMFoam/correctPhi.H
@ -24,7 +24,7 @@ if (mesh.changing())
    wordList pcorrTypes
    (
        p.boundaryField().size(),
-        zeroGradientFvPatchScalarField::typeName
+        fvPatchFieldBase::zeroGradientType()
    );

    // Set BCs of pcorr to fixed-value for patches at which p is fixed
--- a/applications/solvers/lagrangian/DPMFoam/DPMDyMFoam/DPMDyMFoam.C
+++ b/applications/solvers/lagrangian/DPMFoam/DPMDyMFoam/DPMDyMFoam.C
@ -130,7 +130,7 @@ int main(int argc, char *argv[])
            ),
            mesh,
            dimensionedVector(cloudSU.dimensions()/dimVolume, Zero),
-            zeroGradientFvPatchVectorField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );

        cloudVolSUSu.primitiveFieldRef() = -cloudSU.source()/mesh.V();
--- a/applications/solvers/lagrangian/DPMFoam/DPMFoam.C
+++ b/applications/solvers/lagrangian/DPMFoam/DPMFoam.C
@ -111,7 +111,7 @@ int main(int argc, char *argv[])
            ),
            mesh,
            dimensionedVector(cloudSU.dimensions()/dimVolume, Zero),
-            zeroGradientFvPatchVectorField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );

        cloudVolSUSu.primitiveFieldRef() = -cloudSU.source()/mesh.V();
--- a/applications/solvers/multiphase/MPPICInterFoam/MPPICInterFoam.C
+++ b/applications/solvers/multiphase/MPPICInterFoam/MPPICInterFoam.C
@ -141,7 +141,7 @@ int main(int argc, char *argv[])
            ),
            mesh,
            dimensionedVector(cloudSU.dimensions()/dimVolume, Zero),
-            zeroGradientFvPatchVectorField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );

        cloudVolSUSu.primitiveFieldRef() = -cloudSU.source()/mesh.V();
--- a/applications/solvers/multiphase/MPPICInterFoam/createFields.H
+++ b/applications/solvers/multiphase/MPPICInterFoam/createFields.H
@ -64,8 +64,7 @@ volScalarField mu
        mesh,
        IOobject::READ_IF_PRESENT
    ),
-    mixture.mu(),
-    calculatedFvPatchScalarField::typeName
+    mixture.mu()
 );


@ -139,7 +138,7 @@ volScalarField alphac
    ),
    mesh,
    dimensionedScalar(dimless, Zero),
-    zeroGradientFvPatchScalarField::typeName
+    fvPatchFieldBase::zeroGradientType()
 );
 alphac.oldTime();

--- a/applications/solvers/multiphase/cavitatingFoam/cavitatingDyMFoam/createPcorrTypes.H
+++ b/applications/solvers/multiphase/cavitatingFoam/cavitatingDyMFoam/createPcorrTypes.H
@ -1,7 +1,7 @@
    wordList pcorrTypes
    (
        p.boundaryField().size(),
-        zeroGradientFvPatchScalarField::typeName
+        fvPatchFieldBase::zeroGradientType()
    );

    for (label i=0; i<p.boundaryField().size(); i++)
--- a/applications/solvers/multiphase/compressibleInterFoam/compressibleInterFilmFoam/VoFSolidificationMeltingSource/VoFSolidificationMeltingSource.C
+++ b/applications/solvers/multiphase/compressibleInterFoam/compressibleInterFilmFoam/VoFSolidificationMeltingSource/VoFSolidificationMeltingSource.C
@ -140,7 +140,7 @@ Foam::fv::VoFSolidificationMeltingSource::VoFSolidificationMeltingSource
        ),
        mesh,
        dimensionedScalar(dimless, Zero),
-        zeroGradientFvPatchScalarField::typeName
+        fvPatchFieldBase::zeroGradientType()
    ),
    curTimeIndex_(-1)
 {
--- a/applications/solvers/multiphase/driftFluxFoam/incompressibleTwoPhaseInteractingMixture/incompressibleTwoPhaseInteractingMixture.C
+++ b/applications/solvers/multiphase/driftFluxFoam/incompressibleTwoPhaseInteractingMixture/incompressibleTwoPhaseInteractingMixture.C
@ -105,8 +105,7 @@ incompressibleTwoPhaseInteractingMixture
            U_.db()
        ),
        U_.mesh(),
-        dimensionedScalar(dimensionSet(1, -1, -1, 0, 0), Zero),
-        calculatedFvPatchScalarField::typeName
+        dimensionedScalar(dimensionSet(1, -1, -1, 0, 0), Zero)
    )
 {
    correct();
--- a/applications/solvers/multiphase/driftFluxFoam/relativeVelocityModels/relativeVelocityModel/relativeVelocityModel.C
+++ b/applications/solvers/multiphase/driftFluxFoam/relativeVelocityModels/relativeVelocityModel/relativeVelocityModel.C
@ -48,7 +48,7 @@ Foam::wordList Foam::relativeVelocityModel::UdmPatchFieldTypes() const
    wordList UdmTypes
    (
        U.boundaryField().size(),
-        calculatedFvPatchScalarField::typeName
+        fvPatchFieldBase::calculatedType()
    );

    forAll(U.boundaryField(), i)
--- a/applications/solvers/multiphase/interFoam/interMixingFoam/incompressibleThreePhaseMixture/incompressibleThreePhaseMixture.C
+++ b/applications/solvers/multiphase/interFoam/interMixingFoam/incompressibleThreePhaseMixture/incompressibleThreePhaseMixture.C
@ -119,8 +119,7 @@ Foam::incompressibleThreePhaseMixture::incompressibleThreePhaseMixture
            U.db()
        ),
        U.mesh(),
-        dimensionedScalar(dimensionSet(0, 2, -1, 0, 0), Zero),
-        calculatedFvPatchScalarField::typeName
+        dimensionedScalar(dimensionSet(0, 2, -1, 0, 0), Zero)
    ),

    nuModel1_
--- a/applications/solvers/multiphase/interFoam/overInterDyMFoam/correctPhi.H
+++ b/applications/solvers/multiphase/interFoam/overInterDyMFoam/correctPhi.H
@ -27,7 +27,7 @@
    wordList pcorrTypes
    (
        p_rgh.boundaryField().size(),
-        zeroGradientFvPatchScalarField::typeName
+        fvPatchFieldBase::zeroGradientType()
    );

    for (label i=0; i<p_rgh.boundaryField().size(); i++)
--- a/applications/solvers/multiphase/multiphaseEulerFoam/pEqn.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/pEqn.H
@ -76,7 +76,7 @@
                mesh
            ),
            fluid.dragCoeff(phase, dragCoeffs())/phase.rho(),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );
        dragCoeffi.correctBoundaryConditions();

--- a/applications/test/fieldMapping/Test-fieldMapping.C
+++ b/applications/test/fieldMapping/Test-fieldMapping.C
@ -41,7 +41,6 @@ Description
 #include "mapPolyMesh.H"
 #include "polyTopoChange.H"
 #include "fvCFD.H"
-#include "zeroGradientFvPatchFields.H"
 #include "Random.H"

 using namespace Foam;
@ -93,7 +92,7 @@ int main(int argc, char *argv[])
        ),
        mesh,
        dimensionedScalar("one", dimless, 1.0),
-        zeroGradientFvPatchScalarField::typeName
+        fvPatchFieldBase::zeroGradientType()
    );
    Info<< "Writing one field "
        << one.name() << " in " << runTime.timeName() << endl;
@ -131,8 +130,7 @@ int main(int argc, char *argv[])
            IOobject::AUTO_WRITE
        ),
        mesh,
-        dimensionedScalar("one", dimless, 1.0),
-        calculatedFvsPatchScalarField::typeName
+        dimensionedScalar("one", dimless, 1.0)
    );
    Info<< "Writing surface one field "
        << surfaceOne.name() << " in " << runTime.timeName() << endl;
--- a/applications/test/hexRef8/Test-hexRef8.C
+++ b/applications/test/hexRef8/Test-hexRef8.C
@ -41,7 +41,6 @@ Description
 #include "mapPolyMesh.H"
 #include "polyTopoChange.H"
 #include "Random.H"
-#include "zeroGradientFvPatchFields.H"
 #include "calculatedPointPatchFields.H"
 #include "pointConstraints.H"
 #include "fvCFD.H"
@ -99,7 +98,7 @@ int main(int argc, char *argv[])
        ),
        mesh,
        dimensionedScalar("one", dimless, 1.0),
-        zeroGradientFvPatchScalarField::typeName
+        fvPatchFieldBase::zeroGradientType()
    );
    Info<< "Writing one field "
        << one.name() << " in " << runTime.timeName() << endl;
@ -137,8 +136,7 @@ int main(int argc, char *argv[])
            IOobject::AUTO_WRITE
        ),
        mesh,
-        dimensionedScalar("one", dimless, 1.0),
-        calculatedFvsPatchScalarField::typeName
+        dimensionedScalar("one", dimless, 1.0)
    );
    Info<< "Writing surface one field "
        << surfaceOne.name() << " in " << runTime.timeName() << endl;
@ -157,8 +155,7 @@ int main(int argc, char *argv[])
            IOobject::AUTO_WRITE
        ),
        pointMesh::New(mesh),
-        dimensionedScalar("one", dimless, 1.0),
-        calculatedPointPatchScalarField::typeName
+        dimensionedScalar("one", dimless, 1.0)
    );
    pointX.primitiveFieldRef() = mesh.points().component(0);
    pointX.correctBoundaryConditions();
--- a/applications/test/mappedPatch/Test-MappedPatch.C
+++ b/applications/test/mappedPatch/Test-MappedPatch.C
@ -59,7 +59,7 @@ int main(int argc, char *argv[])
    wordList patchFieldTypes
    (
        mesh.boundaryMesh().size(),
-        calculatedFvPatchVectorField::typeName
+        fvPatchFieldBase::calculatedType()
    );

    forAll(mesh.boundaryMesh(), patchi)
--- a/applications/test/volField/Test-volField.C
+++ b/applications/test/volField/Test-volField.C
@ -185,7 +185,7 @@ int main(int argc, char *argv[])
        ),
        mesh,
        dimensioned<symmTensor>(dimless, symmTensor::one),
-        zeroGradientFvPatchSymmTensorField::typeName
+        fvPatchFieldBase::zeroGradientType()
    );

    volTensorField tensf
@ -200,7 +200,7 @@ int main(int argc, char *argv[])
        ),
        mesh,
        dimensioned<tensor>(dimless, tensor(1,2,3,4,5,6,7,8,9)),
-        zeroGradientFvPatchScalarField::typeName
+        fvPatchFieldBase::zeroGradientType()
    );

    SolverPerformance<symmTensor> sP =
--- a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/backgroundMeshDecomposition/backgroundMeshDecomposition.C
+++ b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/backgroundMeshDecomposition/backgroundMeshDecomposition.C
@ -98,8 +98,8 @@ void Foam::backgroundMeshDecomposition::initialRefinement()
            IOobject::NO_WRITE
        ),
        mesh_,
-        dimensionedScalar("one", dimless, 1.0),
-        zeroGradientFvPatchScalarField::typeName
+        dimensionedScalar(word::null, dimless, 1.0),
+        fvPatchFieldBase::zeroGradientType()
    );

    const conformationSurfaces& geometry = geometryToConformTo_;
--- a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshIO.C
+++ b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshIO.C
@ -1098,7 +1098,7 @@ void Foam::conformalVoronoiMesh::writeCellSizes
            ),
            mesh,
            dimensionedScalar(dimLength, Zero),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );

        scalarField& cellSize = targetCellSize.primitiveFieldRef();
@ -1124,7 +1124,7 @@ void Foam::conformalVoronoiMesh::writeCellSizes
        //     ),
        //     mesh,
        //     dimensionedScalar(dimLength, Zero),
-        //     zeroGradientFvPatchScalarField::typeName
+        //     fvPatchFieldBase::zeroGradientType()
        // );

        // targetCellVolume.primitiveFieldRef() = pow3(cellSize);
@ -1143,7 +1143,7 @@ void Foam::conformalVoronoiMesh::writeCellSizes
        //     ),
        //     mesh,
        //     dimensionedScalar(dimVolume, Zero),
-        //     zeroGradientFvPatchScalarField::typeName
+        //     fvPatchFieldBase::zeroGradientType()
        // );

        // actualCellVolume.primitiveFieldRef() = mesh.cellVolumes();
@ -1162,7 +1162,7 @@ void Foam::conformalVoronoiMesh::writeCellSizes
        //     ),
        //     mesh,
        //     dimensionedScalar(dimLength, Zero),
-        //     zeroGradientFvPatchScalarField::typeName
+        //     fvPatchFieldBase::zeroGradientType()
        // );

        // equivalentCellSize.primitiveFieldRef() = pow
@ -1240,11 +1240,12 @@ void Foam::conformalVoronoiMesh::writeCellAlignments
 //            mesh.polyMesh::instance(),
 //            mesh,
 //            IOobject::NO_READ,
-//            IOobject::AUTO_WRITE
+//            IOobject::NO_WRITE,
+//            IOobject::NO_REGISTER
 //        ),
 //        mesh,
 //        tensor::I,
-//        zeroGradientFvPatchTensorField::typeName
+//        fvPatchFieldBase::zeroGradientType()
 //    );
 //
 //    tensorField& cellAlignment = cellAlignments.primitiveFieldRef();
--- a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshTemplates.C
+++ b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshTemplates.C
@ -79,8 +79,8 @@ bool Foam::conformalVoronoiMesh::distributeBackground(const Triangulation& mesh)
                IOobject::NO_WRITE
            ),
            bMesh,
-            dimensionedScalar("weight", dimless, 1e-2),
-            zeroGradientFvPatchScalarField::typeName
+            dimensionedScalar(word::null, dimless, 1e-2),
+            fvPatchFieldBase::zeroGradientType()
        );

        meshSearch cellSearch(bMesh, polyMesh::FACE_PLANES);
--- a/applications/utilities/mesh/manipulation/checkMesh/writeFields.C
+++ b/applications/utilities/mesh/manipulation/checkMesh/writeFields.C
@ -2,7 +2,6 @@
 #include "volFields.H"
 #include "surfaceFields.H"
 #include "polyMeshTools.H"
-#include "zeroGradientFvPatchFields.H"
 #include "syncTools.H"
 #include "tetrahedron.H"
 #include "regionSplit.H"
@ -138,8 +137,7 @@ void writeSurfaceField
            IOobject::NO_REGISTER
        ),
        mesh,
-        dimensionedScalar(dimless, Zero),
-        calculatedFvsPatchScalarField::typeName
+        dimensionedScalar(dimless, Zero)
    );
    fld.primitiveFieldRef() = faceData;
    //fld.correctBoundaryConditions();
@ -197,8 +195,7 @@ void Foam::writeFields
                IOobject::NO_REGISTER
            ),
            mesh,
-            dimensionedScalar(dimless, Zero),
-            calculatedFvPatchScalarField::typeName
+            dimensionedScalar(dimless, Zero)
        );
        //- Take max
        maxFaceToCell(nonOrthoAngle, cellNonOrthoAngle);
@ -235,7 +232,7 @@ void Foam::writeFields
            wordList                                // wanted bc types
            (
                mesh.boundary().size(),
-                calculatedFvPatchScalarField::typeName
+                fvPatchFieldBase::calculatedType()
            ),
            mesh.weights().boundaryField().types()  // current bc types
        );
@ -283,8 +280,7 @@ void Foam::writeFields
                IOobject::NO_REGISTER
            ),
            mesh,
-            dimensionedScalar(dimless, Zero),
-            calculatedFvPatchScalarField::typeName
+            dimensionedScalar(dimless, Zero)
        );
        //- Take max
        maxFaceToCell(faceSkewness, cellSkewness);
@ -321,7 +317,7 @@ void Foam::writeFields
            ),
            mesh,
            dimensionedScalar(dimless, Zero),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );
        cellDeterminant.primitiveFieldRef() =
            primitiveMeshTools::cellDeterminant
@ -356,7 +352,7 @@ void Foam::writeFields
            ),
            mesh,
            dimensionedScalar(dimless, Zero),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );


@ -391,7 +387,7 @@ void Foam::writeFields
            ),
            mesh,
            dimensionedScalar(dimless, Zero),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );

        aspectRatio.ref().field() = cellAspectRatio(mesh);
@ -421,7 +417,7 @@ void Foam::writeFields
            ),
            mesh,
            dimensionedScalar(dimless, Zero),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );
        const cellShapeList& cellShapes = mesh.cellShapes();
        forAll(cellShapes, cellI)
@ -449,8 +445,7 @@ void Foam::writeFields
                IOobject::NO_REGISTER
            ),
            mesh,
-            dimensionedScalar(dimVolume, Zero),
-            calculatedFvPatchScalarField::typeName
+            dimensionedScalar(dimVolume, Zero)
        );
        V.ref() = mesh.V();
        Info<< "    Writing cell volume to " << V.name() << endl;
@ -480,8 +475,7 @@ void Foam::writeFields
                IOobject::NO_REGISTER
            ),
            mesh,
-            dimensionedScalar(dimless, Zero),
-            calculatedFvPatchScalarField::typeName
+            dimensionedScalar(dimless, Zero)
        );
        //- Take min
        minFaceToCell(faceVolumeRatio, cellVolumeRatio);
@ -516,7 +510,7 @@ void Foam::writeFields
            ),
            mesh,
            dimensionedScalar("minTetVolume", dimless, GREAT),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );


@ -582,7 +576,7 @@ void Foam::writeFields
            ),
            mesh,
            dimensionedScalar("minPyrVolume", dimless, GREAT),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );

        // Get owner and neighbour pyr volumes
@ -654,8 +648,7 @@ void Foam::writeFields
                IOobject::NO_REGISTER
            ),
            mesh,
-            dimensionedScalar(dimless, Zero),
-            calculatedFvPatchScalarField::typeName
+            dimensionedScalar(dimless, Zero)
        );

        regionSplit rs(mesh);
@ -705,8 +698,7 @@ void Foam::writeFields
                IOobject::NO_REGISTER
            ),
            mesh,
-            dimensionedScalar(scalar(-1)),
-            calculatedFvPatchScalarField::typeName
+            dimensionedScalar(word::null, dimless, -1)
        );

        const cellZoneMesh& czs = mesh.cellZones();
@ -744,8 +736,7 @@ void Foam::writeFields
                IOobject::NO_REGISTER
            ),
            mesh,
-            dimensionedScalar(scalar(-1)),
-            calculatedFvsPatchScalarField::typeName
+            dimensionedScalar(word::null, dimless, -1)
        );

        faceZone.primitiveFieldRef() =
--- a/applications/utilities/mesh/manipulation/createBaffles/createBaffles.C
+++ b/applications/utilities/mesh/manipulation/createBaffles/createBaffles.C
@ -100,7 +100,7 @@ label addPatch
            mesh,
            pp,
            dictionary(),   // do not set specialised patchFields
-            calculatedFvPatchField<scalar>::typeName,
+            fvPatchFieldBase::calculatedType(),
            true            // parallel sync'ed addition
        );
    }
--- a/applications/utilities/mesh/manipulation/createPatch/createPatch.C
+++ b/applications/utilities/mesh/manipulation/createPatch/createPatch.C
@ -1028,7 +1028,7 @@ int main(int argc, char *argv[])
                                mesh,
                                ppPtr(),
                                patchDict.subOrEmptyDict("patchFields"),
-                                calculatedFvPatchScalarField::typeName,
+                                fvPatchFieldBase::calculatedType(),
                                true
                            );
                        }
@ -1079,7 +1079,7 @@ int main(int argc, char *argv[])
                                mesh,
                                ppPtr(),
                                patchDict.subOrEmptyDict("patchFields"),
-                                calculatedFvPatchScalarField::typeName,
+                                fvPatchFieldBase::calculatedType(),
                                true
                            );
                        }
@ -1108,7 +1108,7 @@ int main(int argc, char *argv[])
                        mesh,
                        ppPtr(),
                        patchDict.subOrEmptyDict("patchFields"),
-                        calculatedFvPatchScalarField::typeName,
+                        fvPatchFieldBase::calculatedType(),
                        true
                    );
                }
--- a/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C
+++ b/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C
@ -76,25 +76,14 @@ tmp<volScalarField> createScalarField
    const labelUList& elems
 )
 {
-    tmp<volScalarField> tfld
+    auto tfld = volScalarField::New
    (
-        new volScalarField
-        (
-            IOobject
-            (
-                name,
-                mesh.time().timeName(),
-                mesh,
-                IOobject::NO_READ,
-                IOobject::AUTO_WRITE,
-                IOobject::NO_REGISTER
-            ),
-            mesh,
-            dimensionedScalar(dimless, Zero),
-            zeroGradientFvPatchScalarField::typeName
-        )
+        name,
+        mesh,
+        dimensionedScalar(dimless, Zero),
+        fvPatchFieldBase::zeroGradientType()
    );
-    volScalarField& fld = tfld.ref();
+    auto& fld = tfld.ref();

    forAll(fld, celli)
    {
--- a/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C
+++ b/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C
@ -114,7 +114,6 @@ Description
 #include "ReadFields.H"
 #include "mappedWallPolyPatch.H"
 #include "fvMeshTools.H"
-#include "zeroGradientFvPatchFields.H"
 #include "processorMeshes.H"

 using namespace Foam;
@ -1055,7 +1054,7 @@ labelList addRegionPatches
            mesh,
            patch1,
            dictionary(),   //optional per field value
-            calculatedFvPatchField<scalar>::typeName,
+            fvPatchFieldBase::calculatedType(),
            true            //validBoundary
        );

@ -1076,7 +1075,7 @@ labelList addRegionPatches
            mesh,
            patch2,
            dictionary(),   //optional per field value
-            calculatedFvPatchField<scalar>::typeName,
+            fvPatchFieldBase::calculatedType(),
            true            //validBoundary
        );

@ -1433,7 +1432,7 @@ void writeCellToRegion(const fvMesh& mesh, const labelList& cellRegion)
            ),
            mesh,
            dimensionedScalar(dimless, Zero),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );
        forAll(cellRegion, celli)
        {
--- a/applications/utilities/parallelProcessing/decomposePar/domainDecompositionDryRunWrite.C
+++ b/applications/utilities/parallelProcessing/decomposePar/domainDecompositionDryRunWrite.C
@ -5,7 +5,7 @@
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
 -------------------------------------------------------------------------------
-    Copyright (C) 2021 OpenCFD Ltd.
+    Copyright (C) 2021-2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
    This file is part of OpenFOAM.
@ -28,7 +28,6 @@ License
 #include "domainDecompositionDryRun.H"
 #include "foamVtkInternalMeshWriter.H"
 #include "volFields.H"
-#include "zeroGradientFvPatchFields.H"

 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

@ -51,8 +50,8 @@ void Foam::domainDecompositionDryRun::writeVolField
            IOobject::NO_REGISTER
        ),
        this->mesh(),
-        dimensionedScalar("cellDist", dimless, -1),
-        zeroGradientFvPatchScalarField::typeName
+        dimensionedScalar(word::null, dimless, -1),
+        fvPatchFieldBase::zeroGradientType()
    );

    forAll(procIds, celli)
--- a/applications/utilities/parallelProcessing/decomposePar/domainDecompositionWrite.C
+++ b/applications/utilities/parallelProcessing/decomposePar/domainDecompositionWrite.C
@ -5,7 +5,7 @@
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
 -------------------------------------------------------------------------------
-    Copyright (C) 2021 OpenCFD Ltd.
+    Copyright (C) 2021-2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
    This file is part of OpenFOAM.
@ -28,7 +28,6 @@ License
 #include "domainDecomposition.H"
 #include "foamVtkInternalMeshWriter.H"
 #include "volFields.H"
-#include "zeroGradientFvPatchFields.H"

 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

@ -52,8 +51,8 @@ void Foam::domainDecomposition::writeVolField
            IOobject::NO_REGISTER
        ),
        this->mesh(),
-        dimensionedScalar("cellDist", dimless, -1),
-        zeroGradientFvPatchScalarField::typeName
+        dimensionedScalar(word::null, dimless, -1),
+        fvPatchFieldBase::zeroGradientType()
    );

    forAll(procIds, celli)
--- a/applications/utilities/parallelProcessing/reconstructParMesh/reconstructParMesh.C
+++ b/applications/utilities/parallelProcessing/reconstructParMesh/reconstructParMesh.C
@ -6,7 +6,7 @@
     \\/     M anipulation  |
 -------------------------------------------------------------------------------
    Copyright (C) 2011-2016 OpenFOAM Foundation
-    Copyright (C) 2016-2022 OpenCFD Ltd.
+    Copyright (C) 2016-2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
    This file is part of OpenFOAM.
@ -69,7 +69,6 @@ Usage
 #include "faceCoupleInfo.H"
 #include "fvMeshAdder.H"
 #include "polyTopoChange.H"
-#include "zeroGradientFvPatchFields.H"
 #include "topoSet.H"
 #include "regionProperties.H"
 #include "fvMeshTools.H"
@ -421,8 +420,8 @@ void writeDistribution
                IOobject::NO_REGISTER
            ),
            masterMesh,
-            dimensionedScalar("cellDist", dimless, -1),
-            zeroGradientFvPatchScalarField::typeName
+            dimensionedScalar(word::null, dimless, -1),
+            fvPatchFieldBase::zeroGradientType()
        );

        forAll(cellDecomposition, celli)
--- a/applications/utilities/parallelProcessing/redistributePar/redistributePar.C
+++ b/applications/utilities/parallelProcessing/redistributePar/redistributePar.C
@ -6,7 +6,7 @@
     \\/     M anipulation  |
 -------------------------------------------------------------------------------
    Copyright (C) 2011-2017 OpenFOAM Foundation
-    Copyright (C) 2015-2022 OpenCFD Ltd.
+    Copyright (C) 2015-2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
    This file is part of OpenFOAM.
@ -90,7 +90,6 @@ Usage
 #include "globalIndex.H"
 #include "loadOrCreateMesh.H"
 #include "processorFvPatchField.H"
-#include "zeroGradientFvPatchFields.H"
 #include "topoSet.H"
 #include "regionProperties.H"

@ -418,8 +417,8 @@ void writeDecomposition
            IOobject::NO_REGISTER
        ),
        mesh,
-        dimensionedScalar(name, dimless, -1),
-        zeroGradientFvPatchScalarField::typeName
+        dimensionedScalar(word::null, dimless, -1),
+        fvPatchFieldBase::zeroGradientType()
    );

    forAll(procCells, celli)
--- a/applications/utilities/postProcessing/dataConversion/foamToEnsight/readFields.H
+++ b/applications/utilities/postProcessing/dataConversion/foamToEnsight/readFields.H
@ -96,7 +96,7 @@ tmp<VolumeField<Type>> makeZeroGradientField
            df.mesh(),
            df.dimensions(),
            std::move(df.field()),
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );

        tfield.ref().oriented() = df.oriented();
@ -130,7 +130,7 @@ tmp<VolumeField<Type>> makeZeroGradientField
            df.mesh(),
            df.dimensions(),
            std::move(df.primitiveFieldRef(false)),  // No update accessTime
-            zeroGradientFvPatchScalarField::typeName
+            fvPatchFieldBase::zeroGradientType()
        );

        tfield.ref().oriented() = df.oriented();
--- a/applications/utilities/preProcessing/applyBoundaryLayer/createFields.H
+++ b/applications/utilities/preProcessing/applyBoundaryLayer/createFields.H
@ -52,7 +52,7 @@ volScalarField y
    ),
    mesh,
    dimensionedScalar(dimLength, Zero),
-    zeroGradientFvPatchScalarField::typeName
+    fvPatchFieldBase::zeroGradientType()
 );
 y.primitiveFieldRef() = wallDist::New(mesh).y().primitiveField();
 y.correctBoundaryConditions();
@ -88,7 +88,7 @@ volScalarField mask
    ),
    mesh,
    dimensionedScalar(dimless, Zero),
-    zeroGradientFvPatchScalarField::typeName
+    fvPatchFieldBase::zeroGradientType()
 );