diff --git a/applications/utilities/postProcessing/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.C b/applications/utilities/postProcessing/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.C
index 5cc6f2213..9a1b6c70e 100644
--- a/applications/utilities/postProcessing/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.C
+++ b/applications/utilities/postProcessing/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.C
@@ -47,27 +47,13 @@ namespace functionObjects
 Foam::functionObjects::writeVTK::writeVTK
 (
     const word& name,
-    const Time& t,
+    const Time& runTime,
     const dictionary& dict
 )
 :
-    functionObject(name),
-    time_(t),
-    obr_
-    (
-        time_.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    ),
+    fvMeshFunctionObject(name, runTime, dict),
     objectNames_()
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 }
 
@@ -98,20 +84,16 @@ bool Foam::functionObjects::writeVTK::write(const bool postProcess)
 {
     Info<< type() << " " << name() << " output:" << nl;
 
-    fvMesh& mesh = const_cast<fvMesh&>(refCast<const fvMesh>(obr_));
+    Info<< "Time: " << time_.timeName() << endl;
 
-    const Time& runTime = mesh.time();
-
-    Info<< "Time: " << runTime.timeName() << endl;
-
-    word timeDesc = runTime.timeName();
+    word timeDesc = time_.timeName();
 
     // VTK/ directory in the case
-    fileName fvPath(runTime.path()/"VTK");
+    fileName fvPath(time_.path()/"VTK");
 
     mkDir(fvPath);
 
-    string vtkName = runTime.caseName();
+    string vtkName = time_.caseName();
 
     if (Pstream::parRun())
     {
@@ -135,7 +117,7 @@ bool Foam::functionObjects::writeVTK::write(const bool postProcess)
 
     Info<< "    Internal  : " << vtkFileName << endl;
 
-    vtkMesh vMesh(mesh);
+    vtkMesh vMesh(const_cast<fvMesh&>(mesh_));
 
     // Write mesh
     internalWriter writer(vMesh, false, vtkFileName);
diff --git a/applications/utilities/postProcessing/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.H b/applications/utilities/postProcessing/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.H
index 2df7cb328..b8c1968f8 100644
--- a/applications/utilities/postProcessing/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.H
+++ b/applications/utilities/postProcessing/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.H
@@ -54,7 +54,7 @@ Description
     \endtable
 
 SeeAlso
-    Foam::functionObject
+    Foam::functionObjects::fvMeshFunctionObject
     Foam::functionObjects::timeControl
 
 SourceFiles
@@ -66,18 +66,13 @@ SourceFiles
 #ifndef functionObjects_writeVTK_H
 #define functionObjects_writeVTK_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "wordReList.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class Time;
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -87,16 +82,10 @@ namespace functionObjects
 
 class writeVTK
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
     // Private data
 
-        //- Reference to the Time
-        const Time& time_;
-
-        //- Refererence to objectRegistry
-        const objectRegistry& obr_;
-
         //- Names of objects
         wordReList objectNames_;
 
diff --git a/src/postProcessing/functionObjects/field/div/div.C b/src/postProcessing/functionObjects/field/div/div.C
index a91ffffcd..a3e6bf114 100644
--- a/src/postProcessing/functionObjects/field/div/div.C
+++ b/src/postProcessing/functionObjects/field/div/div.C
@@ -131,10 +131,10 @@ bool Foam::functionObjects::div::execute(const bool postProcess)
 
 bool Foam::functionObjects::div::write(const bool postProcess)
 {
-    if (obr_.foundObject<regIOobject>(resultName_))
+    if (mesh_.foundObject<regIOobject>(resultName_))
     {
         const regIOobject& field =
-            obr_.lookupObject<regIOobject>(resultName_);
+            mesh_.lookupObject<regIOobject>(resultName_);
 
         Info<< type() << " " << name() << " output:" << nl
             << "    writing field " << field.name() << nl << endl;
diff --git a/src/postProcessing/functionObjects/field/div/div.H b/src/postProcessing/functionObjects/field/div/div.H
index 17e53c26d..54e514a42 100644
--- a/src/postProcessing/functionObjects/field/div/div.H
+++ b/src/postProcessing/functionObjects/field/div/div.H
@@ -32,6 +32,9 @@ Description
     limited to surfaceScalarFields and volVectorFields, and the output is a
     volScalarField.
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     div.C
 
@@ -62,7 +65,7 @@ class div
 :
     public fvMeshFunctionObject
 {
-    // Private data
+    // Private member data
 
         //- Name of field to process
         word fieldName_;
diff --git a/src/postProcessing/functionObjects/field/grad/grad.H b/src/postProcessing/functionObjects/field/grad/grad.H
index 43e6cef3d..a58d78193 100644
--- a/src/postProcessing/functionObjects/field/grad/grad.H
+++ b/src/postProcessing/functionObjects/field/grad/grad.H
@@ -32,6 +32,9 @@ Description
     limited to scalar and vector volume or surface fields, and the output is a
     volume vector or tensor field.
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     grad.C
 
diff --git a/src/postProcessing/functionObjects/field/mag/mag.H b/src/postProcessing/functionObjects/field/mag/mag.H
index be1c6fe86..e3f09e7ed 100644
--- a/src/postProcessing/functionObjects/field/mag/mag.H
+++ b/src/postProcessing/functionObjects/field/mag/mag.H
@@ -32,6 +32,9 @@ Description
     can be applied to any volume or surface fieldsm and the output is a
     volume or surface scalar field.
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     mag.C
 
diff --git a/src/postProcessing/functionObjects/field/nearWallFields/nearWallFields.C b/src/postProcessing/functionObjects/field/nearWallFields/nearWallFields.C
index 2bf8fb253..29f1e3577 100644
--- a/src/postProcessing/functionObjects/field/nearWallFields/nearWallFields.C
+++ b/src/postProcessing/functionObjects/field/nearWallFields/nearWallFields.C
@@ -46,14 +46,12 @@ namespace functionObjects
 
 void Foam::functionObjects::nearWallFields::calcAddressing()
 {
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     // Count number of faces
     label nPatchFaces = 0;
     forAllConstIter(labelHashSet, patchSet_, iter)
     {
         label patchi = iter.key();
-        nPatchFaces += mesh.boundary()[patchi].size();
+        nPatchFaces += mesh_.boundary()[patchi].size();
     }
 
     // Global indexing
@@ -65,7 +63,7 @@ void Foam::functionObjects::nearWallFields::calcAddressing()
     }
 
     // Construct cloud
-    Cloud<findCellParticle> cloud(mesh, IDLList<findCellParticle>());
+    Cloud<findCellParticle> cloud(mesh_, IDLList<findCellParticle>());
 
     // Add particles to track to sample locations
     nPatchFaces = 0;
@@ -73,7 +71,7 @@ void Foam::functionObjects::nearWallFields::calcAddressing()
     forAllConstIter(labelHashSet, patchSet_, iter)
     {
         label patchi = iter.key();
-        const fvPatch& patch = mesh.boundary()[patchi];
+        const fvPatch& patch = mesh_.boundary()[patchi];
 
         vectorField nf(patch.nf());
         vectorField faceCellCentres(patch.patch().faceCellCentres());
@@ -88,7 +86,7 @@ void Foam::functionObjects::nearWallFields::calcAddressing()
             (
                 mappedPatchBase::facePoint
                 (
-                    mesh,
+                    mesh_,
                     meshFacei,
                     polyMesh::FACE_DIAG_TRIS
                 )
@@ -112,14 +110,14 @@ void Foam::functionObjects::nearWallFields::calcAddressing()
             label celli = -1;
             label tetFacei = -1;
             label tetPtI = -1;
-            mesh.findCellFacePt(start, celli, tetFacei, tetPtI);
+            mesh_.findCellFacePt(start, celli, tetFacei, tetPtI);
 
             // Add to cloud. Add originating face as passive data
             cloud.addParticle
             (
                 new findCellParticle
                 (
-                    mesh,
+                    mesh_,
                     start,
                     celli,
                     tetFacei,
@@ -140,8 +138,8 @@ void Foam::functionObjects::nearWallFields::calcAddressing()
         // Dump particles
         OBJstream str
         (
-            mesh.time().path()
-           /"wantedTracks_" + mesh.time().timeName() + ".obj"
+            mesh_.time().path()
+           /"wantedTracks_" + mesh_.time().timeName() + ".obj"
         );
         InfoInFunction << "Dumping tracks to " << str.name() << endl;
 
@@ -155,14 +153,14 @@ void Foam::functionObjects::nearWallFields::calcAddressing()
 
 
     // Per cell: empty or global wall index and end location
-    cellToWalls_.setSize(mesh.nCells());
-    cellToSamples_.setSize(mesh.nCells());
+    cellToWalls_.setSize(mesh_.nCells());
+    cellToSamples_.setSize(mesh_.nCells());
 
     // Database to pass into findCellParticle::move
     findCellParticle::trackingData td(cloud, cellToWalls_, cellToSamples_);
 
     // Track all particles to their end position.
-    scalar maxTrackLen = 2.0*mesh.bounds().mag();
+    scalar maxTrackLen = 2.0*mesh_.bounds().mag();
 
 
     //Debug: collect start points
@@ -202,8 +200,8 @@ void Foam::functionObjects::nearWallFields::calcAddressing()
         {
             OBJstream str
             (
-                mesh.time().path()
-               /"obtainedTracks_" + mesh.time().timeName() + ".obj"
+                mesh_.time().path()
+               /"obtainedTracks_" + mesh_.time().timeName() + ".obj"
             );
             InfoInFunction << "Dumping obtained to " << str.name() << endl;
 
@@ -230,22 +228,9 @@ Foam::functionObjects::nearWallFields::nearWallFields
     const dictionary& dict
 )
 :
-    functionObject(name),
-    obr_
-    (
-        runTime.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    ),
+    fvMeshFunctionObject(name, runTime, dict),
     fieldSet_()
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 }
 
@@ -270,11 +255,9 @@ bool Foam::functionObjects::nearWallFields::read(const dictionary& dict)
         InfoInFunction << endl;
     }
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     dict.lookup("fields") >> fieldSet_;
     patchSet_ =
-        mesh.boundaryMesh().patchSet(wordReList(dict.lookup("patches")));
+        mesh_.boundaryMesh().patchSet(wordReList(dict.lookup("patches")));
     distance_ = readScalar(dict.lookup("distance"));
 
 
@@ -343,7 +326,7 @@ bool Foam::functionObjects::nearWallFields::execute(const bool postProcess)
 
     Info<< type() << " " << name() << " output:" << nl;
 
-    Info<< "    Sampling fields to " << obr_.time().timeName()
+    Info<< "    Sampling fields to " << time_.timeName()
         << endl;
 
     sampleFields(vsf_);
@@ -363,7 +346,7 @@ bool Foam::functionObjects::nearWallFields::write(const bool postProcess)
         InfoInFunction << endl;
     }
 
-    Info<< "    Writing sampled fields to " << obr_.time().timeName()
+    Info<< "    Writing sampled fields to " << time_.timeName()
         << endl;
 
     forAll(vsf_, i)
diff --git a/src/postProcessing/functionObjects/field/nearWallFields/nearWallFields.H b/src/postProcessing/functionObjects/field/nearWallFields/nearWallFields.H
index 4ea6f13fd..f0bdda2cc 100644
--- a/src/postProcessing/functionObjects/field/nearWallFields/nearWallFields.H
+++ b/src/postProcessing/functionObjects/field/nearWallFields/nearWallFields.H
@@ -61,7 +61,7 @@ Description
     \endtable
 
 SeeAlso
-    Foam::functionObject
+    Foam::functionObjects::fvMeshFunctionObject
 
 SourceFiles
     nearWallFields.C
@@ -71,7 +71,7 @@ SourceFiles
 #ifndef functionObjects_nearWallFields_H
 #define functionObjects_nearWallFields_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "volFields.H"
 #include "Tuple2.H"
 #include "interpolationCellPoint.H"
@@ -80,10 +80,6 @@ SourceFiles
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -93,14 +89,11 @@ namespace functionObjects
 
 class nearWallFields
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
 protected:
 
-    // Protected data
-
-        //- Reference to the objectRegistry
-        const objectRegistry& obr_;
+    // Protected member data
 
         // Read from dictionary
 
diff --git a/src/postProcessing/functionObjects/field/processorField/processorField.C b/src/postProcessing/functionObjects/field/processorField/processorField.C
index 3a0f57ed2..1ffc9c10d 100644
--- a/src/postProcessing/functionObjects/field/processorField/processorField.C
+++ b/src/postProcessing/functionObjects/field/processorField/processorField.C
@@ -48,25 +48,10 @@ Foam::functionObjects::processorField::processorField
     const dictionary& dict
 )
 :
-    functionObject(name),
-    obr_
-    (
-        runTime.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    )
+    fvMeshFunctionObject(name, runTime, dict)
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     volScalarField* procFieldPtr
     (
         new volScalarField
@@ -74,17 +59,17 @@ Foam::functionObjects::processorField::processorField
             IOobject
             (
                 "processorID",
-                mesh.time().timeName(),
-                mesh,
+                mesh_.time().timeName(),
+                mesh_,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE
             ),
-            mesh,
+            mesh_,
             dimensionedScalar("0", dimless, 0.0)
         )
     );
 
-    mesh.objectRegistry::store(procFieldPtr);
+    mesh_.objectRegistry::store(procFieldPtr);
 }
 
 
@@ -105,7 +90,7 @@ bool Foam::functionObjects::processorField::read(const dictionary& dict)
 bool Foam::functionObjects::processorField::execute(const bool postProcess)
 {
     const volScalarField& procField =
-        obr_.lookupObject<volScalarField>("processorID");
+        mesh_.lookupObject<volScalarField>("processorID");
 
     const_cast<volScalarField&>(procField) ==
         dimensionedScalar("proci", dimless, Pstream::myProcNo());
@@ -117,7 +102,7 @@ bool Foam::functionObjects::processorField::execute(const bool postProcess)
 bool Foam::functionObjects::processorField::write(const bool postProcess)
 {
     const volScalarField& procField =
-        obr_.lookupObject<volScalarField>("processorID");
+        mesh_.lookupObject<volScalarField>("processorID");
 
     procField.write();
 
diff --git a/src/postProcessing/functionObjects/field/processorField/processorField.H b/src/postProcessing/functionObjects/field/processorField/processorField.H
index 5e9138f45..c3334bedd 100644
--- a/src/postProcessing/functionObjects/field/processorField/processorField.H
+++ b/src/postProcessing/functionObjects/field/processorField/processorField.H
@@ -48,7 +48,7 @@ Description
     \endtable
 
 SeeAlso
-    Foam::functionObject
+    Foam::functionObjects::fvMeshFunctionObject
 
 SourceFiles
     processorField.C
@@ -58,16 +58,12 @@ SourceFiles
 #ifndef functionObjects_processorField_H
 #define functionObjects_processorField_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -77,18 +73,8 @@ namespace functionObjects
 
 class processorField
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
-protected:
-
-    // Protected data
-
-        //- Reference to the objectRegistry
-        const objectRegistry& obr_;
-
-
-private:
-
     // Private member functions
 
         //- Disallow default bitwise copy construct
diff --git a/src/postProcessing/functionObjects/field/readFields/readFields.C b/src/postProcessing/functionObjects/field/readFields/readFields.C
index 6014a7d31..d51f5c652 100644
--- a/src/postProcessing/functionObjects/field/readFields/readFields.C
+++ b/src/postProcessing/functionObjects/field/readFields/readFields.C
@@ -49,22 +49,9 @@ Foam::functionObjects::readFields::readFields
     const dictionary& dict
 )
 :
-    functionObject(name),
-    obr_
-    (
-        runTime.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    ),
+    fvMeshFunctionObject(name, runTime, dict),
     fieldSet_()
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 }
 
diff --git a/src/postProcessing/functionObjects/field/readFields/readFields.H b/src/postProcessing/functionObjects/field/readFields/readFields.H
index d82ecdf44..0f314eb0b 100644
--- a/src/postProcessing/functionObjects/field/readFields/readFields.H
+++ b/src/postProcessing/functionObjects/field/readFields/readFields.H
@@ -54,7 +54,7 @@ Description
     \endtable
 
 SeeAlso
-    Foam::functionObject
+    Foam::functionObjects::fvMeshFunctionObject
 
 SourceFiles
     readFields.C
@@ -64,7 +64,7 @@ SourceFiles
 #ifndef functionObjects_readFields_H
 #define functionObjects_readFields_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "volFieldsFwd.H"
 #include "surfaceFieldsFwd.H"
 
@@ -72,10 +72,6 @@ SourceFiles
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -85,15 +81,12 @@ namespace functionObjects
 
 class readFields
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
 protected:
 
     // Protected data
 
-        //- Reference to the objectRegistry
-        const objectRegistry& obr_;
-
         //- Fields to load
         wordList fieldSet_;
 
diff --git a/src/postProcessing/functionObjects/field/readFields/readFieldsTemplates.C b/src/postProcessing/functionObjects/field/readFields/readFieldsTemplates.C
index 37631001c..9e9feb90e 100644
--- a/src/postProcessing/functionObjects/field/readFields/readFieldsTemplates.C
+++ b/src/postProcessing/functionObjects/field/readFields/readFieldsTemplates.C
@@ -59,13 +59,11 @@ void Foam::functionObjects::readFields::loadField
     }
     else
     {
-        const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
         IOobject fieldHeader
         (
             fieldName,
-            mesh.time().timeName(),
-            mesh,
+            mesh_.time().timeName(),
+            mesh_,
             IOobject::MUST_READ,
             IOobject::NO_WRITE
         );
@@ -80,7 +78,7 @@ void Foam::functionObjects::readFields::loadField
             Info<< "    Reading " << fieldName << endl;
             label sz = vflds.size();
             vflds.setSize(sz+1);
-            vflds.set(sz, new vfType(fieldHeader, mesh));
+            vflds.set(sz, new vfType(fieldHeader, mesh_));
         }
         else if
         (
@@ -92,7 +90,7 @@ void Foam::functionObjects::readFields::loadField
             Info<< "    Reading " << fieldName << endl;
             label sz = sflds.size();
             sflds.setSize(sz+1);
-            sflds.set(sz, new sfType(fieldHeader, mesh));
+            sflds.set(sz, new sfType(fieldHeader, mesh_));
         }
     }
 }
diff --git a/src/postProcessing/functionObjects/forces/pressureTools/pressureTools.C b/src/postProcessing/functionObjects/forces/pressureTools/pressureTools.C
index 97ab1ddd6..631c5541e 100644
--- a/src/postProcessing/functionObjects/forces/pressureTools/pressureTools.C
+++ b/src/postProcessing/functionObjects/forces/pressureTools/pressureTools.C
@@ -129,8 +129,6 @@ Foam::tmp<Foam::volScalarField> Foam::functionObjects::pressureTools::pDyn
     const volScalarField& p
 ) const
 {
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     tmp<volScalarField> tpDyn
     (
         new volScalarField
@@ -138,12 +136,12 @@ Foam::tmp<Foam::volScalarField> Foam::functionObjects::pressureTools::pDyn
             IOobject
             (
                 "pDyn",
-                mesh.time().timeName(),
-                mesh,
+                mesh_.time().timeName(),
+                mesh_,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE
             ),
-            mesh,
+            mesh_,
             dimensionedScalar("zero", dimPressure, 0.0)
         )
     );
@@ -191,14 +189,7 @@ Foam::functionObjects::pressureTools::pressureTools
     const dictionary& dict
 )
 :
-    functionObject(name),
-    obr_
-    (
-        runTime.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    ),
+    fvMeshFunctionObject(name, runTime, dict),
     pName_("p"),
     UName_("U"),
     rhoName_("rho"),
@@ -209,12 +200,6 @@ Foam::functionObjects::pressureTools::pressureTools
     UInf_(Zero),
     rhoInf_(0.0)
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 
     dimensionSet pDims(dimPressure);
@@ -224,8 +209,6 @@ Foam::functionObjects::pressureTools::pressureTools
         pDims /= dimPressure;
     }
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     volScalarField* pPtr
     (
         new volScalarField
@@ -233,17 +216,17 @@ Foam::functionObjects::pressureTools::pressureTools
             IOobject
             (
                 pName(),
-                mesh.time().timeName(),
-                mesh,
+                mesh_.time().timeName(),
+                mesh_,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE
             ),
-            mesh,
+            mesh_,
             dimensionedScalar("0", pDims, 0.0)
         )
     );
 
-    mesh.objectRegistry::store(pPtr);
+    mesh_.objectRegistry::store(pPtr);
 }
 
 
diff --git a/src/postProcessing/functionObjects/forces/pressureTools/pressureTools.H b/src/postProcessing/functionObjects/forces/pressureTools/pressureTools.H
index ff3fd37ad..f957966c8 100644
--- a/src/postProcessing/functionObjects/forces/pressureTools/pressureTools.H
+++ b/src/postProcessing/functionObjects/forces/pressureTools/pressureTools.H
@@ -100,6 +100,9 @@ Description
         rhoInf       | Freestream density for coefficient calculation | no |
     \endtable
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     pressureTools.C
 
@@ -108,7 +111,7 @@ SourceFiles
 #ifndef functionObjects_pressureTools_H
 #define functionObjects_pressureTools_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "volFieldsFwd.H"
 #include "dimensionedScalar.H"
 
@@ -116,10 +119,6 @@ SourceFiles
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -129,13 +128,10 @@ namespace functionObjects
 
 class pressureTools
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
     // Private data
 
-        //- Reference to the objectRegistry
-        const objectRegistry& obr_;
-
         //- Name of pressure field, default is "p"
         word pName_;
 
diff --git a/src/postProcessing/functionObjects/utilities/CourantNo/CourantNo.C b/src/postProcessing/functionObjects/utilities/CourantNo/CourantNo.C
index 298963e58..ff99c21b4 100644
--- a/src/postProcessing/functionObjects/utilities/CourantNo/CourantNo.C
+++ b/src/postProcessing/functionObjects/utilities/CourantNo/CourantNo.C
@@ -75,27 +75,10 @@ Foam::functionObjects::CourantNo::CourantNo
     const dictionary& dict
 )
 :
-    functionObject(name),
-    obr_
-    (
-        runTime.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    ),
-    phiName_("phi"),
-    rhoName_("rho")
+    fvMeshFunctionObject(name, runTime, dict)
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     volScalarField* CourantNoPtr
     (
         new volScalarField
@@ -103,18 +86,18 @@ Foam::functionObjects::CourantNo::CourantNo
             IOobject
             (
                 type(),
-                mesh.time().timeName(),
-                mesh,
+                mesh_.time().timeName(),
+                mesh_,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE
             ),
-            mesh,
+            mesh_,
             dimensionedScalar("0", dimless, 0.0),
             zeroGradientFvPatchScalarField::typeName
         )
     );
 
-    mesh.objectRegistry::store(CourantNoPtr);
+    mesh_.objectRegistry::store(CourantNoPtr);
 }
 
 
@@ -137,21 +120,19 @@ bool Foam::functionObjects::CourantNo::read(const dictionary& dict)
 
 bool Foam::functionObjects::CourantNo::execute(const bool postProcess)
 {
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     const surfaceScalarField& phi =
-        mesh.lookupObject<surfaceScalarField>(phiName_);
+        mesh_.lookupObject<surfaceScalarField>(phiName_);
 
     volScalarField& Co = const_cast<volScalarField&>
     (
-        mesh.lookupObject<volScalarField>(type())
+        mesh_.lookupObject<volScalarField>(type())
     );
 
     Co.ref() = byRho
     (
-        (0.5*mesh.time().deltaT())
+        (0.5*mesh_.time().deltaT())
        *fvc::surfaceSum(mag(phi))()()
-       /mesh.V()
+       /mesh_.V()
     );
     Co.correctBoundaryConditions();
 
diff --git a/src/postProcessing/functionObjects/utilities/CourantNo/CourantNo.H b/src/postProcessing/functionObjects/utilities/CourantNo/CourantNo.H
index 6db5e796e..feaa6b0ae 100644
--- a/src/postProcessing/functionObjects/utilities/CourantNo/CourantNo.H
+++ b/src/postProcessing/functionObjects/utilities/CourantNo/CourantNo.H
@@ -32,6 +32,9 @@ Description
     volScalarField.  The field is stored on the mesh database so that it can
     be retrieved and used for other applications.
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     CourantNo.C
 
@@ -40,7 +43,7 @@ SourceFiles
 #ifndef functionObjects_CourantNo_H
 #define functionObjects_CourantNo_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "volFields.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -56,13 +59,10 @@ namespace functionObjects
 
 class CourantNo
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
     // Private data
 
-        //- Reference to the database
-        const objectRegistry& obr_;
-
         //- Name of flux field, default is "phi"
         word phiName_;
 
diff --git a/src/postProcessing/functionObjects/utilities/Lambda2/Lambda2.C b/src/postProcessing/functionObjects/utilities/Lambda2/Lambda2.C
index defbe1841..9f47b1fac 100644
--- a/src/postProcessing/functionObjects/utilities/Lambda2/Lambda2.C
+++ b/src/postProcessing/functionObjects/utilities/Lambda2/Lambda2.C
@@ -56,26 +56,10 @@ Foam::functionObjects::Lambda2::Lambda2
     const dictionary& dict
 )
 :
-    functionObject(name),
-    obr_
-    (
-        runTime.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    ),
-    UName_("U")
+    fvMeshFunctionObject(name, runTime, dict)
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     volScalarField* Lambda2Ptr
     (
         new volScalarField
@@ -83,17 +67,17 @@ Foam::functionObjects::Lambda2::Lambda2
             IOobject
             (
                 type(),
-                mesh.time().timeName(),
-                mesh,
+                mesh_.time().timeName(),
+                mesh_,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE
             ),
-            mesh,
+            mesh_,
             dimensionedScalar("0", dimless/sqr(dimTime), 0.0)
         )
     );
 
-    mesh.objectRegistry::store(Lambda2Ptr);
+    mesh_.objectRegistry::store(Lambda2Ptr);
 }
 
 
@@ -115,10 +99,8 @@ bool Foam::functionObjects::Lambda2::read(const dictionary& dict)
 
 bool Foam::functionObjects::Lambda2::execute(const bool postProcess)
 {
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     const volVectorField& U =
-        mesh.lookupObject<volVectorField>(UName_);
+        mesh_.lookupObject<volVectorField>(UName_);
 
     const volTensorField gradU(fvc::grad(U));
 
@@ -131,7 +113,7 @@ bool Foam::functionObjects::Lambda2::execute(const bool postProcess)
     volScalarField& Lambda2 =
         const_cast<volScalarField&>
         (
-            mesh.lookupObject<volScalarField>(type())
+            mesh_.lookupObject<volScalarField>(type())
         );
 
     Lambda2 = -eigenValues(SSplusWW)().component(vector::Y);
diff --git a/src/postProcessing/functionObjects/utilities/Lambda2/Lambda2.H b/src/postProcessing/functionObjects/utilities/Lambda2/Lambda2.H
index 76d3b6d73..0957556aa 100644
--- a/src/postProcessing/functionObjects/utilities/Lambda2/Lambda2.H
+++ b/src/postProcessing/functionObjects/utilities/Lambda2/Lambda2.H
@@ -32,6 +32,9 @@ Description
     of the sum of the square of the symmetrical and anti-symmetrical parts of
     the velocity gradient tensor.
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     Lambda2.C
 
@@ -40,17 +43,13 @@ SourceFiles
 #ifndef functionObjects_Lambda2_H
 #define functionObjects_Lambda2_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "volFieldsFwd.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -60,13 +59,10 @@ namespace functionObjects
 
 class Lambda2
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
     // Private data
 
-        //- Reference to the database
-        const objectRegistry& obr_;
-
         //- Name of velocity field, default is "U"
         word UName_;
 
diff --git a/src/postProcessing/functionObjects/utilities/Peclet/Peclet.C b/src/postProcessing/functionObjects/utilities/Peclet/Peclet.C
index b4560d54e..a21596e5d 100644
--- a/src/postProcessing/functionObjects/utilities/Peclet/Peclet.C
+++ b/src/postProcessing/functionObjects/utilities/Peclet/Peclet.C
@@ -59,27 +59,10 @@ Foam::functionObjects::Peclet::Peclet
     const dictionary& dict
 )
 :
-    functionObject(name),
-    obr_
-    (
-        runTime.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    ),
-    phiName_("phi"),
-    rhoName_("rho")
+    fvMeshFunctionObject(name, runTime, dict)
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     surfaceScalarField* PecletPtr
     (
         new surfaceScalarField
@@ -87,17 +70,17 @@ Foam::functionObjects::Peclet::Peclet
             IOobject
             (
                 type(),
-                mesh.time().timeName(),
-                mesh,
+                mesh_.time().timeName(),
+                mesh_,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE
             ),
-            mesh,
+            mesh_,
             dimensionedScalar("0", dimless, 0.0)
         )
     );
 
-    mesh.objectRegistry::store(PecletPtr);
+    mesh_.objectRegistry::store(PecletPtr);
 }
 
 
@@ -123,39 +106,37 @@ bool Foam::functionObjects::Peclet::execute(const bool postProcess)
     typedef compressible::turbulenceModel cmpTurbModel;
     typedef incompressible::turbulenceModel icoTurbModel;
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     tmp<volScalarField> nuEff;
-    if (mesh.foundObject<cmpTurbModel>(turbulenceModel::propertiesName))
+    if (mesh_.foundObject<cmpTurbModel>(turbulenceModel::propertiesName))
     {
         const cmpTurbModel& model =
-            mesh.lookupObject<cmpTurbModel>
+            mesh_.lookupObject<cmpTurbModel>
             (
                 turbulenceModel::propertiesName
             );
 
         const volScalarField& rho =
-            mesh.lookupObject<volScalarField>(rhoName_);
+            mesh_.lookupObject<volScalarField>(rhoName_);
 
         nuEff = model.muEff()/rho;
     }
     else if
     (
-        mesh.foundObject<icoTurbModel>(turbulenceModel::propertiesName)
+        mesh_.foundObject<icoTurbModel>(turbulenceModel::propertiesName)
     )
     {
         const icoTurbModel& model =
-            mesh.lookupObject<icoTurbModel>
+            mesh_.lookupObject<icoTurbModel>
             (
                 turbulenceModel::propertiesName
             );
 
         nuEff = model.nuEff();
     }
-    else if (mesh.foundObject<dictionary>("transportProperties"))
+    else if (mesh_.foundObject<dictionary>("transportProperties"))
     {
         const dictionary& model =
-            mesh.lookupObject<dictionary>("transportProperties");
+            mesh_.lookupObject<dictionary>("transportProperties");
 
         nuEff =
             tmp<volScalarField>
@@ -165,12 +146,12 @@ bool Foam::functionObjects::Peclet::execute(const bool postProcess)
                     IOobject
                     (
                         "nuEff",
-                        mesh.time().timeName(),
-                        mesh,
+                        mesh_.time().timeName(),
+                        mesh_,
                         IOobject::NO_READ,
                         IOobject::NO_WRITE
                     ),
-                    mesh,
+                    mesh_,
                     dimensionedScalar(model.lookup("nu"))
                 )
             );
@@ -183,19 +164,19 @@ bool Foam::functionObjects::Peclet::execute(const bool postProcess)
     }
 
     const surfaceScalarField& phi =
-        mesh.lookupObject<surfaceScalarField>(phiName_);
+        mesh_.lookupObject<surfaceScalarField>(phiName_);
 
     surfaceScalarField& Peclet =
         const_cast<surfaceScalarField&>
         (
-            mesh.lookupObject<surfaceScalarField>(type())
+            mesh_.lookupObject<surfaceScalarField>(type())
         );
 
     Peclet =
         mag(phi)
        /(
-            mesh.magSf()
-           *mesh.surfaceInterpolation::deltaCoeffs()
+            mesh_.magSf()
+           *mesh_.surfaceInterpolation::deltaCoeffs()
            *fvc::interpolate(nuEff)
         );
 
@@ -206,7 +187,7 @@ bool Foam::functionObjects::Peclet::execute(const bool postProcess)
 bool Foam::functionObjects::Peclet::write(const bool postProcess)
 {
     const surfaceScalarField& Peclet =
-        obr_.lookupObject<surfaceScalarField>(type());
+        mesh_.lookupObject<surfaceScalarField>(type());
 
     Info<< type() << " " << name() << " output:" << nl
         << "    writing field " << Peclet.name() << nl
diff --git a/src/postProcessing/functionObjects/utilities/Peclet/Peclet.H b/src/postProcessing/functionObjects/utilities/Peclet/Peclet.H
index ed829c196..d2e872b86 100644
--- a/src/postProcessing/functionObjects/utilities/Peclet/Peclet.H
+++ b/src/postProcessing/functionObjects/utilities/Peclet/Peclet.H
@@ -31,6 +31,9 @@ Description
     This function object calculates and outputs the Peclet number as a
     surfaceScalarField.
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     Peclet.C
 
@@ -39,17 +42,13 @@ SourceFiles
 #ifndef functionObjects_Peclet_H
 #define functionObjects_Peclet_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "volFieldsFwd.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -59,13 +58,10 @@ namespace functionObjects
 
 class Peclet
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
     // Private data
 
-        //- Reference to the database
-        const objectRegistry& obr_;
-
         //- Name of flux field, default is "phi"
         word phiName_;
 
diff --git a/src/postProcessing/functionObjects/utilities/Q/Q.C b/src/postProcessing/functionObjects/utilities/Q/Q.C
index 407ce0ba6..a07925d2b 100644
--- a/src/postProcessing/functionObjects/utilities/Q/Q.C
+++ b/src/postProcessing/functionObjects/utilities/Q/Q.C
@@ -55,26 +55,10 @@ Foam::functionObjects::Q::Q
     const dictionary& dict
 )
 :
-    functionObject(name),
-    obr_
-    (
-        runTime.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    ),
-    UName_("U")
+    fvMeshFunctionObject(name, runTime, dict)
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     volScalarField* QPtr
     (
         new volScalarField
@@ -82,17 +66,17 @@ Foam::functionObjects::Q::Q
             IOobject
             (
                 type(),
-                mesh.time().timeName(),
-                mesh,
+                mesh_.time().timeName(),
+                mesh_,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE
             ),
-            mesh,
+            mesh_,
             dimensionedScalar("0", dimless/sqr(dimTime), 0.0)
         )
     );
 
-    mesh.objectRegistry::store(QPtr);
+    mesh_.objectRegistry::store(QPtr);
 }
 
 
@@ -114,17 +98,15 @@ bool Foam::functionObjects::Q::read(const dictionary& dict)
 
 bool Foam::functionObjects::Q::execute(const bool postProcess)
 {
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     const volVectorField& U =
-        mesh.lookupObject<volVectorField>(UName_);
+        mesh_.lookupObject<volVectorField>(UName_);
 
     const volTensorField gradU(fvc::grad(U));
 
     volScalarField& Q =
         const_cast<volScalarField&>
         (
-            mesh.lookupObject<volScalarField>(type())
+            mesh_.lookupObject<volScalarField>(type())
         );
 
     Q = 0.5*(sqr(tr(gradU)) - tr(((gradU) & (gradU))));
@@ -136,7 +118,7 @@ bool Foam::functionObjects::Q::execute(const bool postProcess)
 bool Foam::functionObjects::Q::write(const bool postProcess)
 {
     const volScalarField& Q =
-        obr_.lookupObject<volScalarField>(type());
+        mesh_.lookupObject<volScalarField>(type());
 
     Info<< type() << " " << name() << " output:" << nl
         << "    writing field " << Q.name() << nl
diff --git a/src/postProcessing/functionObjects/utilities/Q/Q.H b/src/postProcessing/functionObjects/utilities/Q/Q.H
index 52ec9aaad..1b64e08d0 100644
--- a/src/postProcessing/functionObjects/utilities/Q/Q.H
+++ b/src/postProcessing/functionObjects/utilities/Q/Q.H
@@ -35,6 +35,9 @@ Description
         Q = 0.5(sqr(tr(\nabla U)) - tr(((\nabla U) \cdot (\nabla U))))
     \f]
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     Q.C
 
@@ -43,17 +46,13 @@ SourceFiles
 #ifndef functionObjects_Q_H
 #define functionObjects_Q_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "volFieldsFwd.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -63,13 +62,10 @@ namespace functionObjects
 
 class Q
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
     // Private data
 
-        //- Reference to the database
-        const objectRegistry& obr_;
-
         //- Name of velocity field, default is "U"
         word UName_;
 
diff --git a/src/postProcessing/functionObjects/utilities/blendingFactor/blendingFactor.H b/src/postProcessing/functionObjects/utilities/blendingFactor/blendingFactor.H
index 33e1fd1c8..f0d7dc61b 100644
--- a/src/postProcessing/functionObjects/utilities/blendingFactor/blendingFactor.H
+++ b/src/postProcessing/functionObjects/utilities/blendingFactor/blendingFactor.H
@@ -33,8 +33,7 @@ Description
     value is calculated via the maximum blending factor for any cell face.
 
 SeeAlso
-    Foam::fvMeshFunctionObject
-    Foam::functionObject
+    Foam::functionObjects::fvMeshFunctionObject
 
 SourceFiles
     blendingFactor.C
diff --git a/src/postProcessing/functionObjects/utilities/blendingFactor/blendingFactorTemplates.C b/src/postProcessing/functionObjects/utilities/blendingFactor/blendingFactorTemplates.C
index d2df84d3c..d9262f7ff 100644
--- a/src/postProcessing/functionObjects/utilities/blendingFactor/blendingFactorTemplates.C
+++ b/src/postProcessing/functionObjects/utilities/blendingFactor/blendingFactorTemplates.C
@@ -38,22 +38,20 @@ Foam::volScalarField& Foam::functionObjects::blendingFactor::factor
 {
     const word fieldName = "blendingFactor:" + field.name();
 
-    if (!obr_.foundObject<volScalarField>(fieldName))
+    if (!mesh_.foundObject<volScalarField>(fieldName))
     {
-        const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
         volScalarField* factorPtr =
             new volScalarField
             (
                 IOobject
                 (
                     fieldName,
-                    mesh.time().timeName(),
-                    mesh,
+                    mesh_.time().timeName(),
+                    mesh_,
                     IOobject::NO_READ,
                     IOobject::NO_WRITE
                 ),
-                mesh,
+                mesh_,
                 dimensionedScalar("0", dimless, 0.0),
                 zeroGradientFvPatchScalarField::typeName
             );
@@ -64,7 +62,7 @@ Foam::volScalarField& Foam::functionObjects::blendingFactor::factor
     return
         const_cast<volScalarField&>
         (
-            obr_.lookupObject<volScalarField>(fieldName)
+            mesh_.lookupObject<volScalarField>(fieldName)
         );
 }
 
@@ -74,23 +72,21 @@ void Foam::functionObjects::blendingFactor::calc()
 {
     typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
 
-    if (!obr_.foundObject<fieldType>(fieldName_))
+    if (!mesh_.foundObject<fieldType>(fieldName_))
     {
         return;
     }
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
-    const fieldType& field = mesh.lookupObject<fieldType>(fieldName_);
+    const fieldType& field = mesh_.lookupObject<fieldType>(fieldName_);
 
     const word divScheme("div(" + phiName_ + ',' + fieldName_ + ')');
-    ITstream& its = mesh.divScheme(divScheme);
+    ITstream& its = mesh_.divScheme(divScheme);
 
     const surfaceScalarField& phi =
-        mesh.lookupObject<surfaceScalarField>(phiName_);
+        mesh_.lookupObject<surfaceScalarField>(phiName_);
 
     tmp<fv::convectionScheme<Type>> cs =
-        fv::convectionScheme<Type>::New(mesh, phi, its);
+        fv::convectionScheme<Type>::New(mesh_, phi, its);
 
     const fv::gaussConvectionScheme<Type>& gcs =
         refCast<const fv::gaussConvectionScheme<Type>>(cs());
diff --git a/src/postProcessing/functionObjects/utilities/scalarTransport/scalarTransport.C b/src/postProcessing/functionObjects/utilities/scalarTransport/scalarTransport.C
index c494a5b2b..2a0fe99e7 100644
--- a/src/postProcessing/functionObjects/utilities/scalarTransport/scalarTransport.C
+++ b/src/postProcessing/functionObjects/utilities/scalarTransport/scalarTransport.C
@@ -157,25 +157,9 @@ Foam::functionObjects::scalarTransport::scalarTransport
     const dictionary& dict
 )
 :
-    functionObject(name),
-    mesh_
-    (
-        refCast<const fvMesh>
-        (
-            runTime.lookupObject<objectRegistry>
-            (
-                dict.lookupOrDefault("region", polyMesh::defaultRegion)
-            )
-        )
-    ),
-    phiName_(dict.lookupOrDefault<word>("phiName", "phi")),
-    UName_(dict.lookupOrDefault<word>("UName", "U")),
-    rhoName_(dict.lookupOrDefault<word>("rhoName", "rho")),
+    fvMeshFunctionObject(name, runTime, dict),
     DT_(0.0),
-    userDT_(false),
-    resetOnStartUp_(false),
     nCorr_(0),
-    autoSchemes_(false),
     fvOptions_(mesh_),
     T_
     (
diff --git a/src/postProcessing/functionObjects/utilities/scalarTransport/scalarTransport.H b/src/postProcessing/functionObjects/utilities/scalarTransport/scalarTransport.H
index 2508ce721..9f3ea589b 100644
--- a/src/postProcessing/functionObjects/utilities/scalarTransport/scalarTransport.H
+++ b/src/postProcessing/functionObjects/utilities/scalarTransport/scalarTransport.H
@@ -39,6 +39,9 @@ Description
     - the diffusivity can be set manually using the DT entry, or retrieved
       from the turbulence model (if applicable)
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     scalarTransport.C
 
@@ -47,7 +50,7 @@ SourceFiles
 #ifndef functionObjects_scalarTransport_H
 #define functionObjects_scalarTransport_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "volFields.H"
 #include "surfaceFieldsFwd.H"
 #include "fvOptionList.H"
@@ -56,10 +59,6 @@ SourceFiles
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -69,13 +68,10 @@ namespace functionObjects
 
 class scalarTransport
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
     // Private data
 
-        //- Reference to the mesh database
-        const fvMesh& mesh_;
-
         //- Name of flux field (optional)
         word phiName_;
 
diff --git a/src/postProcessing/functionObjects/utilities/vorticity/vorticity.C b/src/postProcessing/functionObjects/utilities/vorticity/vorticity.C
index ac9828f8e..a9f8f1faa 100644
--- a/src/postProcessing/functionObjects/utilities/vorticity/vorticity.C
+++ b/src/postProcessing/functionObjects/utilities/vorticity/vorticity.C
@@ -55,27 +55,11 @@ Foam::functionObjects::vorticity::vorticity
     const dictionary& dict
 )
 :
-    functionObject(name),
-    obr_
-    (
-        runTime.lookupObject<objectRegistry>
-        (
-            dict.lookupOrDefault("region", polyMesh::defaultRegion)
-        )
-    ),
-    UName_("U"),
+    fvMeshFunctionObject(name, runTime, dict),
     outputName_(typeName)
 {
-    if (!isA<fvMesh>(obr_))
-    {
-        FatalErrorInFunction
-            << "objectRegistry is not an fvMesh" << exit(FatalError);
-    }
-
     read(dict);
 
-    const fvMesh& mesh = refCast<const fvMesh>(obr_);
-
     volVectorField* vorticityPtr
     (
         new volVectorField
@@ -83,17 +67,17 @@ Foam::functionObjects::vorticity::vorticity
             IOobject
             (
                 outputName_,
-                mesh.time().timeName(),
-                mesh,
+                mesh_.time().timeName(),
+                mesh_,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE
             ),
-            mesh,
+            mesh_,
             dimensionedVector("0", dimless/dimTime, Zero)
         )
     );
 
-    mesh.objectRegistry::store(vorticityPtr);
+    mesh_.objectRegistry::store(vorticityPtr);
 }
 
 
@@ -119,11 +103,11 @@ bool Foam::functionObjects::vorticity::read(const dictionary& dict)
 
 bool Foam::functionObjects::vorticity::execute(const bool postProcess)
 {
-    const volVectorField& U = obr_.lookupObject<volVectorField>(UName_);
+    const volVectorField& U = mesh_.lookupObject<volVectorField>(UName_);
 
     volVectorField& vorticity = const_cast<volVectorField&>
     (
-        obr_.lookupObject<volVectorField>(outputName_)
+        mesh_.lookupObject<volVectorField>(outputName_)
     );
 
     vorticity = fvc::curl(U);
@@ -135,7 +119,7 @@ bool Foam::functionObjects::vorticity::execute(const bool postProcess)
 bool Foam::functionObjects::vorticity::write(const bool postProcess)
 {
     const volVectorField& vorticity =
-        obr_.lookupObject<volVectorField>(outputName_);
+        mesh_.lookupObject<volVectorField>(outputName_);
 
     Info<< type() << " " << name() << " output:" << nl
         << "    writing field " << vorticity.name() << nl
diff --git a/src/postProcessing/functionObjects/utilities/vorticity/vorticity.H b/src/postProcessing/functionObjects/utilities/vorticity/vorticity.H
index 942926a94..6d719e3ed 100644
--- a/src/postProcessing/functionObjects/utilities/vorticity/vorticity.H
+++ b/src/postProcessing/functionObjects/utilities/vorticity/vorticity.H
@@ -30,6 +30,9 @@ Group
 Description
     This function object calculates the vorticity, the curl of the velocity.
 
+SeeAlso
+    Foam::functionObjects::fvMeshFunctionObject
+
 SourceFiles
     vorticity.C
 
@@ -38,17 +41,13 @@ SourceFiles
 #ifndef functionObjects_vorticity_H
 #define functionObjects_vorticity_H
 
-#include "functionObject.H"
+#include "fvMeshFunctionObject.H"
 #include "volFieldsFwd.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -58,13 +57,10 @@ namespace functionObjects
 
 class vorticity
 :
-    public functionObject
+    public fvMeshFunctionObject
 {
     // Private data
 
-        //- Reference to the database
-        const objectRegistry& obr_;
-
         //- Name of velocity field, default is "U"
         word UName_;
 
diff --git a/src/thermophysicalModels/reactionThermo/functionObjects/moleFractions/moleFractions.C b/src/thermophysicalModels/reactionThermo/functionObjects/moleFractions/moleFractions.C
index 83b88380f..40a8f5f7b 100644
--- a/src/thermophysicalModels/reactionThermo/functionObjects/moleFractions/moleFractions.C
+++ b/src/thermophysicalModels/reactionThermo/functionObjects/moleFractions/moleFractions.C
@@ -51,12 +51,11 @@ template<class ThermoType>
 Foam::moleFractions<ThermoType>::moleFractions
 (
     const word& name,
-    const Time& t,
+    const Time& runTime,
     const dictionary& dict
 )
 :
-    writeFiles(name, t, dict, typeName),
-    mesh_(refCast<const fvMesh>(obr_))
+    fvMeshFunctionObject(name, runTime, dict)
 {
     if (mesh_.foundObject<ThermoType>(basicThermo::dictName))
     {
diff --git a/src/thermophysicalModels/reactionThermo/functionObjects/moleFractions/moleFractions.H b/src/thermophysicalModels/reactionThermo/functionObjects/moleFractions/moleFractions.H
index c35771832..0ad3845a2 100644
--- a/src/thermophysicalModels/reactionThermo/functionObjects/moleFractions/moleFractions.H
+++ b/src/thermophysicalModels/reactionThermo/functionObjects/moleFractions/moleFractions.H
@@ -49,7 +49,7 @@ Description
     depending on the thermodynamics package used in the solver.
 
 SeeAlso
-    Foam::functionObject
+    Foam::functionObjects::fvMeshFunctionObject
 
 SourceFiles
     moleFractions.C
@@ -59,8 +59,8 @@ SourceFiles
 #ifndef moleFractions_H
 #define moleFractions_H
 
-#include "writeFiles.H"
-#include "volFields.H"
+#include "fvMeshFunctionObject.H"
+#include "volFieldsFwd.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -74,13 +74,10 @@ namespace Foam
 template<class ThermoType>
 class moleFractions
 :
-    public functionObjects::writeFiles
+    public functionObjects::fvMeshFunctionObject
 {
     // Private data
 
-        //- Reference to the mesh
-        const fvMesh& mesh_;
-
         //- Species mole fractions
         PtrList<volScalarField> X_;