diff --git a/src/fieldSources/Make/files b/src/fieldSources/Make/files
new file mode 100644
index 0000000000..0df9defae4
--- /dev/null
+++ b/src/fieldSources/Make/files
@@ -0,0 +1,28 @@
+basicSource/basicSource/basicSource.C
+basicSource/basicSource/basicSourceIO.C
+basicSource/basicSource/basicSourceList.C
+basicSource/basicSource/IObasicSourceList.C
+
+basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.C
+basicSource/pressureGradientExplicitSource/pressureGradientExplicitSourceIO.C
+
+basicSource/explicitSource/explicitSource.C
+basicSource/explicitSetValue/explicitSetValue.C
+
+basicSource/rotorDiskSource/rotorDiskSource.C
+basicSource/rotorDiskSource/bladeModel/bladeModel.C
+basicSource/rotorDiskSource/profileModel/profileModel.C
+basicSource/rotorDiskSource/profileModel/profileModelList.C
+basicSource/rotorDiskSource/profileModel/lookup/lookupProfile.C
+basicSource/rotorDiskSource/profileModel/series/seriesProfile.C
+
+basicSource/actuationDiskSource/actuationDiskSource.C
+basicSource/radialActuationDiskSource/radialActuationDiskSource.C
+
+interRegion = basicSource/interRegionHeatTransferModel
+$(interRegion)/interRegionHeatTransferModel/interRegionHeatTransferModel.C
+$(interRegion)/constantHeatTransfer/constantHeatTransfer.C
+$(interRegion)/tabulatedHeatTransfer/tabulatedHeatTransfer.C
+$(interRegion)/variableHeatTransfer/variableHeatTransfer.C
+
+LIB = $(FOAM_LIBBIN)/libfieldSources
\ No newline at end of file
diff --git a/src/fieldSources/Make/options b/src/fieldSources/Make/options
new file mode 100644
index 0000000000..bb78896172
--- /dev/null
+++ b/src/fieldSources/Make/options
@@ -0,0 +1,17 @@
+EXE_INC = \
+    -I$(LIB_SRC)/finiteVolume/lnInclude \
+    -I$(LIB_SRC)/meshTools/lnInclude \
+    -I$(LIB_SRC)/sampling/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/basicSolidThermo/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/specie/lnInclude \
+    -I$(LIB_SRC)/turbulenceModels/compressible/turbulenceModel/lnInclude \
+    -I$(LIB_SRC)/turbulenceModels
+
+
+LIB_LIBS = \
+    -lfiniteVolume \
+    -lsampling \
+    -lmeshTools \
+    -lbasicSolidThermo \
+    -lcompressibleTurbulenceModel
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.C b/src/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.C
rename to src/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.H b/src/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.H
rename to src/fieldSources/basicSource/actuationDiskSource/actuationDiskSource.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/actuationDiskSource/actuationDiskSourceTemplates.C b/src/fieldSources/basicSource/actuationDiskSource/actuationDiskSourceTemplates.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/actuationDiskSource/actuationDiskSourceTemplates.C
rename to src/fieldSources/basicSource/actuationDiskSource/actuationDiskSourceTemplates.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/IObasicSourceList.C b/src/fieldSources/basicSource/basicSource/IObasicSourceList.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/IObasicSourceList.C
rename to src/fieldSources/basicSource/basicSource/IObasicSourceList.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/IObasicSourceList.H b/src/fieldSources/basicSource/basicSource/IObasicSourceList.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/IObasicSourceList.H
rename to src/fieldSources/basicSource/basicSource/IObasicSourceList.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSource.C b/src/fieldSources/basicSource/basicSource/basicSource.C
similarity index 78%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSource.C
rename to src/fieldSources/basicSource/basicSource/basicSource.C
index da790fab4d..40f283a78a 100644
--- a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSource.C
+++ b/src/fieldSources/basicSource/basicSource/basicSource.C
@@ -38,16 +38,17 @@ namespace Foam
     template<> const char* NamedEnum
     <
         basicSource::selectionModeType,
-        4
+        5
         >::names[] =
     {
         "points",
         "cellSet",
         "cellZone",
+        "mapRegion",
         "all"
     };
 
-    const NamedEnum<basicSource::selectionModeType, 4>
+    const NamedEnum<basicSource::selectionModeType, 5>
         basicSource::selectionModeTypeNames_;
 }
 
@@ -73,6 +74,13 @@ void Foam::basicSource::setSelection(const dictionary& dict)
             dict.lookup("cellZone") >> cellSetName_;
             break;
         }
+        case smMapRegion:
+        {
+            dict_.lookup("secondarySourceName") >> secondarySourceName_;
+            dict_.lookup("mapRegionName") >> mapRegionName_;
+            master_  = readBool(dict_.lookup("master"));
+            break;
+        }
         case smAll:
         {
             break;
@@ -151,6 +159,47 @@ void Foam::basicSource::setCellSet()
 
             break;
         }
+        case smMapRegion:
+        {
+            if(active_)
+            {
+                Info<< indent << "- selecting inter region mapping" << endl;
+                const fvMesh& secondaryMesh =
+                    mesh_.time().lookupObject<fvMesh>(mapRegionName_);
+                const boundBox primaryBB = mesh_.bounds();
+                const boundBox secondaryBB = secondaryMesh.bounds();
+                if (secondaryBB.overlaps(primaryBB))
+                {
+
+                    // Dummy patches
+                    wordList cuttingPatches;
+                    HashTable<word> patchMap;
+
+                    secondaryToPrimaryInterpPtr_.reset
+                    (
+                        new meshToMesh
+                        (
+                            secondaryMesh,
+                            mesh_,
+                            patchMap,
+                            cuttingPatches
+                        )
+                    );
+                }
+                else
+                {
+                    FatalErrorIn
+                    (
+                        "Foam::basicSource::setCellSet()"
+                    )   << "regions dont overlap "
+                        << secondaryMesh.name()
+                        << " in region " << mesh_.name()
+                        << nl
+                        << exit(FatalError);
+                }
+            }
+            break;
+        }
         case smAll:
         {
             Info<< indent << "- selecting all cells" << endl;
@@ -169,16 +218,19 @@ void Foam::basicSource::setCellSet()
     }
 
     // Set volume information
-    V_ = 0.0;
-    forAll(cells_, i)
+    if(selectionMode_ != smMapRegion)
     {
-        V_ += mesh_.V()[cells_[i]];
-    }
-    reduce(V_, sumOp<scalar>());
+        V_ = 0.0;
+        forAll(cells_, i)
+        {
+            V_ += mesh_.V()[cells_[i]];
+        }
+        reduce(V_, sumOp<scalar>());
 
-    Info<< indent << "- selected "
-        << returnReduce(cells_.size(), sumOp<label>())
-        << " cell(s) with volume " << V_ << nl << decrIndent << endl;
+        Info<< indent << "- selected "
+            << returnReduce(cells_.size(), sumOp<label>())
+            << " cell(s) with volume " << V_ << nl << decrIndent << endl;
+    }
 }
 
 
@@ -205,6 +257,11 @@ Foam::basicSource::basicSource
     ),
     cellSetName_("none"),
     V_(0.0),
+    secondaryToPrimaryInterpPtr_(),
+    secondarySourceName_("none"),
+    mapRegionName_("none"),
+    master_(false),
+
     fieldNames_(),
     applied_()
 {
@@ -246,6 +303,13 @@ Foam::autoPtr<Foam::basicSource> Foam::basicSource::New
     return autoPtr<basicSource>(cstrIter()(name, modelType, coeffs, mesh));
 }
 
+Foam::basicSource::~basicSource()
+{
+    if (!secondaryToPrimaryInterpPtr_.empty())
+    {
+        secondaryToPrimaryInterpPtr_.clear();
+    }
+}
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSource.H b/src/fieldSources/basicSource/basicSource/basicSource.H
similarity index 91%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSource.H
rename to src/fieldSources/basicSource/basicSource/basicSource.H
index bf61cfe0ca..3fa4974c86 100644
--- a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSource.H
+++ b/src/fieldSources/basicSource/basicSource/basicSource.H
@@ -32,6 +32,7 @@ Description
         timeStart       0.0;                    // start time
         duration        1000.0;                 // duration
         selectionMode   cellSet;                // cellSet // points //cellZone
+                                                // mapRegion
 
     On evaluation, source expects to be added to the rhs of the equation
 
@@ -48,6 +49,8 @@ SourceFiles
 #include "fvMatricesFwd.H"
 #include "cellSet.H"
 #include "autoPtr.H"
+#include "meshToMesh.H"
+
 #include "runTimeSelectionTables.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -57,6 +60,7 @@ namespace Foam
 
 class fvMesh;
 
+
 /*---------------------------------------------------------------------------*\
                          Class basicSource Declaration
 \*---------------------------------------------------------------------------*/
@@ -73,11 +77,13 @@ public:
             smPoints,
             smCellSet,
             smCellZone,
+            smMapRegion,
             smAll
         };
 
         //- Word list of selection mode type names
-        static const NamedEnum<selectionModeType, 4> selectionModeTypeNames_;
+        static const NamedEnum<selectionModeType, 5>
+            selectionModeTypeNames_;
 
 
 protected:
@@ -120,6 +126,21 @@ protected:
         //- Sum of cell volumes
         scalar V_;
 
+        // Data for smMapRegion only
+
+            //- Mesh to mesh mapping for map optiom
+            autoPtr<meshToMesh> secondaryToPrimaryInterpPtr_;
+
+            //- Name of the source in the secondary mesh
+            word secondarySourceName_;
+
+            //- Name of the region to map
+            word mapRegionName_;
+
+            //- Master or slave region
+            bool master_;
+
+
         //- Field names to apply source to - populated by derived models
         wordList fieldNames_;
 
@@ -227,8 +248,8 @@ public:
 
 
     //- Destructor
-    virtual ~basicSource()
-    {}
+    virtual ~basicSource();
+
 
 
     // Member Functions
@@ -266,6 +287,15 @@ public:
             //- Return const access to the total cell volume
             inline scalar V() const;
 
+            //- Return const access to the secondarySourceName
+            inline const word secondarySourceName() const;
+
+            //- Return const access to the mapToMap Ptr
+            inline const autoPtr<meshToMesh> secondaryToPrimaryInterpPtr() const;
+
+            //- Return const referenc to the mapRegion
+            inline const word mapRegionName() const;
+
             //- Return const access to the cell set
             inline const labelList& cells() const;
 
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceI.H b/src/fieldSources/basicSource/basicSource/basicSourceI.H
similarity index 88%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceI.H
rename to src/fieldSources/basicSource/basicSource/basicSourceI.H
index daf00bfc7c..84444144f3 100644
--- a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceI.H
+++ b/src/fieldSources/basicSource/basicSource/basicSourceI.H
@@ -118,4 +118,21 @@ inline Foam::scalar& Foam::basicSource::duration()
 }
 
 
+inline const Foam::word Foam::basicSource::secondarySourceName() const
+{
+    return secondarySourceName_;
+}
+
+
+inline const Foam::autoPtr<Foam::meshToMesh> Foam::basicSource::
+secondaryToPrimaryInterpPtr() const
+{
+    return secondaryToPrimaryInterpPtr_;
+}
+
+inline const Foam::word Foam::basicSource::mapRegionName() const
+{
+    return mapRegionName_;
+}
+
 // ************************************************************************* //
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceIO.C b/src/fieldSources/basicSource/basicSource/basicSourceIO.C
similarity index 97%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceIO.C
rename to src/fieldSources/basicSource/basicSource/basicSourceIO.C
index 55eb290087..ce0c88cace 100644
--- a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceIO.C
+++ b/src/fieldSources/basicSource/basicSource/basicSourceIO.C
@@ -72,6 +72,10 @@ void Foam::basicSource::writeData(Ostream& os) const
         {
             break;
         }
+        case smMapRegion:
+        {
+            break;
+        }
         default:
         {
             FatalErrorIn("basicSource::writeData(Ostream&) const")
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceList.C b/src/fieldSources/basicSource/basicSource/basicSourceList.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceList.C
rename to src/fieldSources/basicSource/basicSource/basicSourceList.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceList.H b/src/fieldSources/basicSource/basicSource/basicSourceList.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceList.H
rename to src/fieldSources/basicSource/basicSource/basicSourceList.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceListTemplates.C b/src/fieldSources/basicSource/basicSource/basicSourceListTemplates.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/basicSourceListTemplates.C
rename to src/fieldSources/basicSource/basicSource/basicSourceListTemplates.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/makeBasicSource.H b/src/fieldSources/basicSource/basicSource/makeBasicSource.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/basicSource/makeBasicSource.H
rename to src/fieldSources/basicSource/basicSource/makeBasicSource.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSetValue/ExplicitSetValue.C b/src/fieldSources/basicSource/explicitSetValue/ExplicitSetValue.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSetValue/ExplicitSetValue.C
rename to src/fieldSources/basicSource/explicitSetValue/ExplicitSetValue.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSetValue/ExplicitSetValue.H b/src/fieldSources/basicSource/explicitSetValue/ExplicitSetValue.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSetValue/ExplicitSetValue.H
rename to src/fieldSources/basicSource/explicitSetValue/ExplicitSetValue.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSetValue/ExplicitSetValueIO.C b/src/fieldSources/basicSource/explicitSetValue/ExplicitSetValueIO.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSetValue/ExplicitSetValueIO.C
rename to src/fieldSources/basicSource/explicitSetValue/ExplicitSetValueIO.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSetValue/explicitSetValue.C b/src/fieldSources/basicSource/explicitSetValue/explicitSetValue.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSetValue/explicitSetValue.C
rename to src/fieldSources/basicSource/explicitSetValue/explicitSetValue.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/ExplicitSource.C b/src/fieldSources/basicSource/explicitSource/ExplicitSource.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/ExplicitSource.C
rename to src/fieldSources/basicSource/explicitSource/ExplicitSource.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/ExplicitSource.H b/src/fieldSources/basicSource/explicitSource/ExplicitSource.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/ExplicitSource.H
rename to src/fieldSources/basicSource/explicitSource/ExplicitSource.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/ExplicitSourceI.H b/src/fieldSources/basicSource/explicitSource/ExplicitSourceI.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/ExplicitSourceI.H
rename to src/fieldSources/basicSource/explicitSource/ExplicitSourceI.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/ExplicitSourceIO.C b/src/fieldSources/basicSource/explicitSource/ExplicitSourceIO.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/ExplicitSourceIO.C
rename to src/fieldSources/basicSource/explicitSource/ExplicitSourceIO.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/explicitSource.C b/src/fieldSources/basicSource/explicitSource/explicitSource.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/explicitSource/explicitSource.C
rename to src/fieldSources/basicSource/explicitSource/explicitSource.C
diff --git a/src/fieldSources/basicSource/interRegionHeatTransferModel/constantHeatTransfer/constantHeatTransfer.C b/src/fieldSources/basicSource/interRegionHeatTransferModel/constantHeatTransfer/constantHeatTransfer.C
new file mode 100644
index 0000000000..eb49266305
--- /dev/null
+++ b/src/fieldSources/basicSource/interRegionHeatTransferModel/constantHeatTransfer/constantHeatTransfer.C
@@ -0,0 +1,141 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "constantHeatTransfer.H"
+#include "fvm.H"
+#include "IObasicSourceList.H"
+#include "addToRunTimeSelectionTable.H"
+#include "fvcVolumeIntegrate.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(constantHeatTransfer, 0);
+    addToRunTimeSelectionTable
+    (
+        basicSource,
+        constantHeatTransfer,
+        dictionary
+    );
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::constantHeatTransfer::constantHeatTransfer
+(
+    const word& name,
+    const word& modelType,
+    const dictionary& dict,
+    const fvMesh& mesh
+)
+:
+    interRegionHeatTransferModel(name, modelType, dict, mesh),
+    htCoeffs_(),
+    area_()
+{
+    if (master_)
+    {
+        htCoeffs_.reset
+        (
+            new volScalarField
+            (
+                IOobject
+                (
+                    "htCoeffs",
+                    mesh_.time().timeName(),
+                    mesh_,
+                    IOobject::MUST_READ,
+                    IOobject::AUTO_WRITE
+                ),
+                mesh_
+            )
+        );
+
+        area_.reset
+        (
+            new volScalarField
+            (
+                IOobject
+                (
+                    "area",
+                    mesh_.time().timeName(),
+                    mesh_,
+                    IOobject::MUST_READ,
+                    IOobject::AUTO_WRITE
+                ),
+                mesh_
+            )
+        );
+
+        htc_.internalField() = htCoeffs_()*area_()/mesh_.V();
+        htc_.correctBoundaryConditions();
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::constantHeatTransfer::~constantHeatTransfer()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+const Foam::tmp<Foam::volScalarField>Foam::constantHeatTransfer::
+calculateHtc()
+{
+    return htc_;
+}
+
+
+void Foam::constantHeatTransfer::writeData(Ostream& os) const
+{
+    os  << indent << token::BEGIN_BLOCK << incrIndent << nl;
+    interRegionHeatTransferModel::writeData(os);
+
+    os << indent << "constantHeatTransfer";
+
+    dict_.write(os);
+
+    os << decrIndent << indent << token::END_BLOCK << endl;
+}
+
+
+bool Foam::constantHeatTransfer::read(const dictionary& dict)
+{
+    if (basicSource::read(dict))
+    {
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+// ************************************************************************* //
\ No newline at end of file
diff --git a/src/fieldSources/basicSource/interRegionHeatTransferModel/constantHeatTransfer/constantHeatTransfer.H b/src/fieldSources/basicSource/interRegionHeatTransferModel/constantHeatTransfer/constantHeatTransfer.H
new file mode 100644
index 0000000000..375d00ae8b
--- /dev/null
+++ b/src/fieldSources/basicSource/interRegionHeatTransferModel/constantHeatTransfer/constantHeatTransfer.H
@@ -0,0 +1,110 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::constantHeatTransfer
+
+Description
+    Constant heat transfer model. htCoeffs [W/m2/K] and area [m2] must be
+    provided.
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef constantHeatTransfer_H
+#define constantHeatTransfer_H
+
+#include "interRegionHeatTransferModel.H"
+#include "autoPtr.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+/*---------------------------------------------------------------------------*\
+                        Class constantHeatTransfer Declaration
+\*---------------------------------------------------------------------------*/
+
+class constantHeatTransfer
+:
+    public interRegionHeatTransferModel
+{
+private:
+
+    // Private data
+
+        //- Heat transfer coefficient
+        autoPtr<volScalarField> htCoeffs_;
+
+        //- Area of heat exchange
+        autoPtr<volScalarField> area_;
+
+
+public:
+
+    //- Runtime type information
+        TypeName("constantHeatTransfer");
+
+
+    // Constructors
+
+        //- Construct from dictionary
+        constantHeatTransfer
+        (
+            const word& name,
+            const word& modelType,
+            const dictionary& dict,
+            const fvMesh& mesh
+        );
+
+
+    //- Destructor
+    virtual ~constantHeatTransfer();
+
+
+    // Public Functions
+
+        //- Calculate the heat transfer coefficient
+        virtual const tmp<volScalarField> calculateHtc();
+
+
+        // I-O
+
+            //- Write data
+            virtual void writeData(Ostream&) const;
+
+            //- Read dictionary
+            virtual bool read(const dictionary& dict) ;
+
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+
+#endif
+
+// ************************************************************************* //
diff --git a/src/fieldSources/basicSource/interRegionHeatTransferModel/interRegionHeatTransferModel/interRegionHeatTransferModel.C b/src/fieldSources/basicSource/interRegionHeatTransferModel/interRegionHeatTransferModel/interRegionHeatTransferModel.C
new file mode 100644
index 0000000000..497ff86ef5
--- /dev/null
+++ b/src/fieldSources/basicSource/interRegionHeatTransferModel/interRegionHeatTransferModel/interRegionHeatTransferModel.C
@@ -0,0 +1,273 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "interRegionHeatTransferModel.H"
+#include "basicThermo.H"
+#include "fvm.H"
+#include "IObasicSourceList.H"
+#include "zeroGradientFvPatchFields.H"
+#include "fvcVolumeIntegrate.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(interRegionHeatTransferModel, 0);
+};
+
+
+// * * * * * * * * * * * *  Private member functions * * * * * * * * * * * //
+
+void Foam::interRegionHeatTransferModel::check()
+{
+    const fvMesh& secondaryMesh =
+            mesh_.time().lookupObject<fvMesh>(mapRegionName_);
+
+    const basicSourceList& IObsl =
+        secondaryMesh.lookupObject<basicSourceList>
+        (
+            "sourcesProperties"
+        );
+
+    const PtrList<basicSource>& bsl = IObsl;
+
+    bool secSourceFound(false);
+
+    forAll(bsl, i)
+    {
+        if (bsl[i].name() == secondarySourceName_)
+        {
+            secIrht_ = &const_cast<interRegionHeatTransferModel&>
+            (
+                refCast<const interRegionHeatTransferModel>(bsl[i])
+            );
+            secSourceFound = true;
+            break;
+        }
+    }
+
+    if(!secSourceFound)
+    {
+        FatalErrorIn
+        (
+            "constantHeatTransfer::interRegionHeatTransferModel"
+            "("
+            "   const word& name,"
+            "   const word& modelType,"
+            "   const dictionary& dict,"
+            "   const fvMesh& mesh"
+            ")"
+        )   << "Secondary source name not found" << secondarySourceName_
+            << " in region " << secondaryMesh.name()
+            << nl
+            << exit(FatalError);
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::interRegionHeatTransferModel::interRegionHeatTransferModel
+(
+    const word& name,
+    const word& modelType,
+    const dictionary& dict,
+    const fvMesh& mesh
+)
+:
+    basicSource(name, modelType, dict, mesh),
+    secIrht_(),
+    firstIter_(true),
+    htc_
+    (
+        IOobject
+        (
+            "htc",
+            mesh.time().timeName(),
+            mesh,
+            IOobject::NO_READ,
+            IOobject::NO_WRITE
+        ),
+        mesh,
+        dimensionedScalar
+        (
+            "htc",
+            dimEnergy/dimTime/dimTemperature/dimVolume,
+            0.0
+        ),
+        zeroGradientFvPatchScalarField::typeName
+    )
+{
+    coeffs_.lookup("fieldNames") >> fieldNames_;
+    applied_.setSize(fieldNames_.size(), false);
+}
+
+
+Foam::interRegionHeatTransferModel::~interRegionHeatTransferModel()
+{}
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+
+void Foam::interRegionHeatTransferModel::addSup
+(
+    fvMatrix<scalar>& eEqn,
+    const label fieldI
+)
+{
+    if (firstIter_)
+    {
+        check();
+        firstIter_ = false;
+    }
+
+    const volScalarField& h = eEqn.psi();
+
+    tmp<volScalarField> tTmapped
+    (
+        new volScalarField
+        (
+            IOobject
+            (
+                "Tmapped" + mesh_.name(),
+                mesh_.time().timeName(),
+                mesh_,
+                IOobject::NO_READ,
+                IOobject::NO_WRITE
+            ),
+            mesh_,
+            dimensionedScalar("T", dimTemperature, 0.0)
+        )
+    );
+
+    volScalarField& Tmapped = tTmapped();
+
+    const fvMesh& secondaryMesh =
+        mesh_.time().lookupObject<fvMesh>(mapRegionName_);
+
+    basicThermo&  secondaryThermo =
+        const_cast<basicThermo&>
+        (
+            secondaryMesh.lookupObject<basicThermo>("thermophysicalProperties")
+        );
+
+    secondaryToPrimaryInterpPtr_->interpolateInternalField
+    (
+        Tmapped,
+        secondaryThermo.T(),
+        meshToMesh::MAP,
+        eqOp<scalar>()
+    );
+
+    if (!master_)
+    {
+        secondaryToPrimaryInterpPtr_->interpolateInternalField
+        (
+            htc_,
+            secIrht_->calculateHtc(),
+            meshToMesh::CELL_VOLUME_WEIGHT,
+            eqOp<scalar>()
+        );
+    }
+
+    if (debug)
+    {
+        Info<< " Volumetric integral of htc : "
+            << fvc::domainIntegrate(htc_).value()
+            << endl;
+    }
+
+    //SAF: temporarily output
+    if (mesh_.time().outputTime())
+    {
+        Tmapped.write();
+        htc_.write();
+    }
+
+    if (h.dimensions() == dimEnergy/dimMass)
+    {
+        const basicThermo& primaryThermo =
+            mesh_.lookupObject<basicThermo>("thermophysicalProperties");
+
+        eEqn += htc_*Tmapped - fvm::Sp(htc_/primaryThermo.Cp(), h);
+
+        if (debug)
+        {
+            Info<< " Energy exchange from region " << secondaryMesh.name()
+                << " To " << mesh_.name() << " : "
+                <<  fvc::domainIntegrate
+                    (
+                        htc_*(h/primaryThermo.Cp() - Tmapped)
+                    ).value()
+                << endl;
+        }
+    }
+    else if(h.dimensions() == dimTemperature)
+    {
+        eEqn += htc_*Tmapped - fvm::Sp(htc_, h);
+
+        if (debug)
+        {
+            Info<< " Enegy exchange from region " << secondaryMesh.name()
+                << " To " << mesh_.name() << " : "
+                <<  fvc::domainIntegrate(htc_*(h - Tmapped)).value()
+                << endl;
+        }
+    }
+}
+
+
+void Foam::interRegionHeatTransferModel::writeData(Ostream& os) const
+{
+    os.writeKeyword("name") << this->name() << token::END_STATEMENT << nl;
+    os.writeKeyword("mapRegionName") << mapRegionName_
+        << token::END_STATEMENT << nl;
+    os.writeKeyword("secondarySourceName") << secondarySourceName_
+        << token::END_STATEMENT << nl;
+
+    os.writeKeyword("master") << master_ << token::END_STATEMENT << nl;
+
+    if (dict_.found("note"))
+    {
+        os.writeKeyword("note") << string(dict_.lookup("note"))
+            << token::END_STATEMENT << nl;
+    }
+
+    dict_.write(os);
+}
+
+
+bool Foam::interRegionHeatTransferModel::read(const dictionary& dict)
+{
+    if (basicSource::read(dict))
+    {
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+// ************************************************************************* //
diff --git a/src/fieldSources/basicSource/interRegionHeatTransferModel/interRegionHeatTransferModel/interRegionHeatTransferModel.H b/src/fieldSources/basicSource/interRegionHeatTransferModel/interRegionHeatTransferModel/interRegionHeatTransferModel.H
new file mode 100644
index 0000000000..38c8141bed
--- /dev/null
+++ b/src/fieldSources/basicSource/interRegionHeatTransferModel/interRegionHeatTransferModel/interRegionHeatTransferModel.H
@@ -0,0 +1,139 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::interRegionHeatTransferModel
+
+Description
+    Base class for inter region heat exchange. The derived classes must
+    provide the heat transfer coefficient (htc)
+    NOTE: mapToMap does to work in paralell
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef interRegionHeatTransferModel_H
+#define interRegionHeatTransferModel_H
+
+#include "basicSource.H"
+#include "volFields.H"
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                       Class interRegionHeatTransferModel Declaration
+\*---------------------------------------------------------------------------*/
+
+class interRegionHeatTransferModel
+:
+    public  basicSource
+{
+
+private:
+
+    // Private data
+
+        //- Pointer to secondary interRegionHeatTransferModel
+        interRegionHeatTransferModel* secIrht_;
+
+        //- First iteration
+        bool firstIter_;
+
+
+    // Private members
+
+        //- Check coupled interRegionHeatTransferModel
+        void check();
+
+
+protected:
+
+    // Protected data
+
+        //- Heat transfer coefficient [W/m2/k] by area/volume [1/m]
+        // registered on the master mesh
+        volScalarField htc_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("interRegionHeatTransferModel");
+
+
+    // Constructors
+
+        //- Construct from dictionary
+        interRegionHeatTransferModel
+        (
+            const word& name,
+            const word& modelType,
+            const dictionary& dict,
+            const fvMesh& mesh
+        );
+
+
+    //- Destructor
+    virtual ~interRegionHeatTransferModel();
+
+
+    // Member Functions
+
+
+        // Access
+
+            //- Return the heat transfer coefficient
+            const volScalarField& htc() const
+            {
+                return  htc_;
+            }
+
+            //-Source term to fvMatrix<scalar>
+            virtual void addSup(fvMatrix<scalar>& eEqn, const label fieldI);
+
+            //- Calculate heat transfer coefficient
+            virtual const tmp<volScalarField> calculateHtc() = 0;
+
+
+        // I-O
+
+            //- Write data
+            virtual void writeData(Ostream&) const;
+
+            //- Read dictionary
+            virtual bool read(const dictionary& dict);
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+#endif
+
+// ************************************************************************* //
diff --git a/src/fieldSources/basicSource/interRegionHeatTransferModel/tabulatedHeatTransfer/tabulatedHeatTransfer.C b/src/fieldSources/basicSource/interRegionHeatTransferModel/tabulatedHeatTransfer/tabulatedHeatTransfer.C
new file mode 100644
index 0000000000..5a6a22d295
--- /dev/null
+++ b/src/fieldSources/basicSource/interRegionHeatTransferModel/tabulatedHeatTransfer/tabulatedHeatTransfer.C
@@ -0,0 +1,155 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "tabulatedHeatTransfer.H"
+
+#include "turbulenceModel.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(tabulatedHeatTransfer, 0);
+    addToRunTimeSelectionTable
+    (
+        basicSource,
+        tabulatedHeatTransfer,
+        dictionary
+    );
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::tabulatedHeatTransfer::tabulatedHeatTransfer
+(
+    const word& name,
+    const word& modelType,
+    const dictionary& dict,
+    const fvMesh& mesh
+)
+:
+    interRegionHeatTransferModel(name, modelType, dict, mesh),
+    hTable_(),
+    area_()
+{
+    if (master_)
+    {
+        hTable_.reset
+        (
+            new interpolation2DTable<scalar>
+            (
+                dict.subDict(typeName + "Coeffs")
+            )
+        );
+        area_.reset
+        (
+            new volScalarField
+            (
+                IOobject
+                (
+                    "area",
+                    mesh_.time().timeName(),
+                    mesh_,
+                    IOobject::MUST_READ,
+                    IOobject::AUTO_WRITE
+                ),
+                mesh_
+            )
+        );
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::tabulatedHeatTransfer::~tabulatedHeatTransfer()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+
+const Foam::tmp<Foam::volScalarField>Foam::tabulatedHeatTransfer::
+calculateHtc()
+{
+    const fvMesh& secondaryMesh =
+        mesh_.time().lookupObject<fvMesh>(mapRegionName());
+
+    const volVectorField& Usecondary =
+        secondaryMesh.lookupObject<volVectorField>("U");
+
+    scalarField UMagMapped(htc_.internalField().size(), 0.0);
+
+    secondaryToPrimaryInterpPtr_->interpolateInternalField
+    (
+        UMagMapped,
+        mag(Usecondary),
+        meshToMesh::MAP,
+        eqOp<scalar>()
+    );
+
+    const volVectorField& U = mesh_.lookupObject<volVectorField>("U");
+
+    forAll (htc_.internalField(), i)
+    {
+        htc_.internalField()[i] =
+            hTable_->operator()(mag(U[i]), UMagMapped[i]);
+    }
+
+    htc_.internalField() = htc_*area_/mesh_.V();
+
+    return htc_;
+}
+
+
+void Foam::tabulatedHeatTransfer::writeData(Ostream& os) const
+{
+    os  << indent << token::BEGIN_BLOCK << incrIndent << nl;
+    interRegionHeatTransferModel::writeData(os);
+
+    os << indent << "tabulatedHeatTransfer";
+
+    dict_.write(os);
+
+    os << decrIndent << indent << token::END_BLOCK << endl;
+}
+
+
+bool Foam::tabulatedHeatTransfer::read(const dictionary& dict)
+{
+    if (basicSource::read(dict))
+    {
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+// ************************************************************************* //
\ No newline at end of file
diff --git a/src/fieldSources/basicSource/interRegionHeatTransferModel/tabulatedHeatTransfer/tabulatedHeatTransfer.H b/src/fieldSources/basicSource/interRegionHeatTransferModel/tabulatedHeatTransfer/tabulatedHeatTransfer.H
new file mode 100644
index 0000000000..e5c37fdf3b
--- /dev/null
+++ b/src/fieldSources/basicSource/interRegionHeatTransferModel/tabulatedHeatTransfer/tabulatedHeatTransfer.H
@@ -0,0 +1,112 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::tabulatedHeatTransfer
+
+Description
+    Tabulated heat transfer model. The heat exchange area must be
+    provided. The 2D table look for heat transfer coefficients uses the
+    primary and secondary region velocities
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef tabulatedHeatTransfer_H
+#define tabulatedHeatTransfer_H
+
+#include "interRegionHeatTransferModel.H"
+#include "autoPtr.H"
+#include "interpolation2DTable.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+/*---------------------------------------------------------------------------*\
+                    Class tabulatedHeatTransfer Declaration
+\*---------------------------------------------------------------------------*/
+
+class tabulatedHeatTransfer
+:
+    public interRegionHeatTransferModel
+{
+private:
+
+    // Private data
+
+        //- 2D look up table
+        autoPtr<interpolation2DTable<scalar> > hTable_;
+
+        //- Area of heat exchange
+        autoPtr<volScalarField> area_;
+
+
+public:
+
+    //- Runtime type information
+        TypeName("tabulatedHeatTransfer");
+
+
+    // Constructors
+
+        //- Construct from dictionary
+        tabulatedHeatTransfer
+        (
+            const word& name,
+            const word& modelType,
+            const dictionary& dict,
+            const fvMesh& mesh
+        );
+
+
+    //- Destructor
+    virtual ~tabulatedHeatTransfer();
+
+
+    // Public Functions
+
+        //- Calculate the heat transfer coefficient
+        virtual const tmp<volScalarField> calculateHtc();
+
+
+        // I-O
+
+            //- Write data
+            virtual void writeData(Ostream&) const;
+
+            //- Read dictionary
+            virtual bool read(const dictionary& dict) ;
+
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+
+#endif
+
+// ************************************************************************* //
diff --git a/src/fieldSources/basicSource/interRegionHeatTransferModel/variableHeatTransfer/variableHeatTransfer.C b/src/fieldSources/basicSource/interRegionHeatTransferModel/variableHeatTransfer/variableHeatTransfer.C
new file mode 100644
index 0000000000..bce2c5a66a
--- /dev/null
+++ b/src/fieldSources/basicSource/interRegionHeatTransferModel/variableHeatTransfer/variableHeatTransfer.C
@@ -0,0 +1,187 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "variableHeatTransfer.H"
+#include "IObasicSourceList.H"
+#include "turbulenceModel.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(variableHeatTransfer, 0);
+    addToRunTimeSelectionTable
+    (
+        basicSource,
+        variableHeatTransfer,
+        dictionary
+    );
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::variableHeatTransfer::variableHeatTransfer
+(
+    const word& name,
+    const word& modelType,
+    const dictionary& dict,
+    const fvMesh& mesh
+)
+:
+    interRegionHeatTransferModel(name, modelType, dict, mesh),
+    a_(0),
+    b_(0),
+    c_(0),
+    ds_(0),
+    Pr_(0),
+    area_()
+{
+    if (master_)
+    {
+        a_ = readScalar(dict_.lookup("a"));
+        b_ = readScalar(dict_.lookup("b"));
+        c_ = readScalar(dict_.lookup("c"));
+        ds_ = readScalar(dict_.lookup("ds"));
+        Pr_ = readScalar(dict_.lookup("Pr"));
+        area_.reset
+        (
+            new volScalarField
+            (
+                IOobject
+                (
+                    "area",
+                    mesh_.time().timeName(),
+                    mesh_,
+                    IOobject::MUST_READ,
+                    IOobject::AUTO_WRITE
+                ),
+                mesh_
+            )
+        );
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::variableHeatTransfer::~variableHeatTransfer()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+
+const Foam::tmp<Foam::volScalarField> Foam::variableHeatTransfer::
+calculateHtc()
+{
+
+    const fvMesh& secondaryMesh =
+        mesh_.time().lookupObject<fvMesh>(mapRegionName());
+
+    const compressible::turbulenceModel& turb =
+        secondaryMesh.lookupObject<compressible::turbulenceModel>
+        (
+            "turbulenceModel"
+        );
+
+    const basicThermo& secondaryThermo =
+        secondaryMesh.lookupObject<basicThermo>
+        (
+            "thermophysicalProperties"
+        );
+
+    const volVectorField& U =
+        secondaryMesh.lookupObject<volVectorField>("U");
+
+    const volScalarField Re
+    (
+        mag(U)*ds_*secondaryThermo.rho()/turb.mut()
+    );
+
+    const volScalarField Nu(a_*pow(Re, b_)*pow(Pr_, c_));
+
+    const volScalarField K(turb.alphaEff()*secondaryThermo.Cp());
+
+    scalarField htcMapped(htc_.internalField().size(), 0.0);
+
+    secondaryToPrimaryInterpPtr_->interpolateInternalField
+    (
+        htcMapped,
+        Nu*K/ds_,
+        meshToMesh::MAP,
+        eqOp<scalar>()
+    );
+
+    htc_.internalField() = htcMapped*area_/mesh_.V();
+
+    return htc_;
+}
+
+
+void Foam::variableHeatTransfer::writeData(Ostream& os) const
+{
+    os  << indent << token::BEGIN_BLOCK << incrIndent << nl;
+    interRegionHeatTransferModel::writeData(os);
+
+    os.writeKeyword("a") << a_ << token::END_STATEMENT << nl;
+    os.writeKeyword("b") << b_ << token::END_STATEMENT << nl;
+    os.writeKeyword("c") << c_ << token::END_STATEMENT << nl;
+    os.writeKeyword("ds") << ds_ << token::END_STATEMENT << nl;
+    os.writeKeyword("Pr") << Pr_ << token::END_STATEMENT << nl;
+
+    os << indent << "variableHeatTransfer";
+
+    dict_.write(os);
+
+    os << decrIndent << indent << token::END_BLOCK << endl;
+}
+
+
+bool Foam::variableHeatTransfer::read(const dictionary& dict)
+{
+    if (basicSource::read(dict))
+    {
+
+        const dictionary& sourceDict = dict.subDict(name());
+        const dictionary& subDictCoeffs =
+            sourceDict.subDict(typeName + "Coeffs");
+        subDictCoeffs.readIfPresent("a", a_);
+        subDictCoeffs.readIfPresent("b", b_);
+        subDictCoeffs.readIfPresent("c", c_);
+        subDictCoeffs.readIfPresent("ds", ds_);
+        subDictCoeffs.readIfPresent("Pr", Pr_);
+
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+// ************************************************************************* //
\ No newline at end of file
diff --git a/src/fieldSources/basicSource/interRegionHeatTransferModel/variableHeatTransfer/variableHeatTransfer.H b/src/fieldSources/basicSource/interRegionHeatTransferModel/variableHeatTransfer/variableHeatTransfer.H
new file mode 100644
index 0000000000..1d8f25caad
--- /dev/null
+++ b/src/fieldSources/basicSource/interRegionHeatTransferModel/variableHeatTransfer/variableHeatTransfer.H
@@ -0,0 +1,128 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::variableHeatTransfer
+
+Description
+    Variable heat transfer model depending on local values. The area of contact
+    between regions (area) must be provided. The Nu number is calculated as:
+
+        Nu = a*pow(Re, b)*pow(Pr, c)
+
+        and the heat transfer coefficient as:
+
+        htc = Nu*K/ds
+
+        where:
+            K is the heat conduction
+            ds is the strut diameter
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef variableHeatTransfer_H
+#define variableHeatTransfer_H
+
+#include "interRegionHeatTransferModel.H"
+#include "autoPtr.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+/*---------------------------------------------------------------------------*\
+                        Class variableHeatTransfer Declaration
+\*---------------------------------------------------------------------------*/
+
+class variableHeatTransfer
+:
+    public interRegionHeatTransferModel
+{
+private:
+
+    // Private data
+
+        //- Model constants
+        scalar a_;
+        scalar b_;
+        scalar c_;
+
+        //- Strut diameter
+        scalar ds_;
+
+        //- Fluid Prandt number
+        scalar Pr_;
+
+        //- Area of heat exchange
+        autoPtr<volScalarField> area_;
+
+
+public:
+
+    //- Runtime type information
+        TypeName("variableHeatTransfer");
+
+
+    // Constructors
+
+        //- Construct from dictionary
+        variableHeatTransfer
+        (
+            const word& name,
+            const word& modelType,
+            const dictionary& dict,
+            const fvMesh& mesh
+        );
+
+
+    //- Destructor
+    virtual ~variableHeatTransfer();
+
+
+    // Public Functions
+
+        //- Calculate the heat transfer coefficient
+        virtual const tmp<volScalarField> calculateHtc();
+
+
+        // I-O
+
+            //- Write data
+            virtual void writeData(Ostream&) const;
+
+            //- Read dictionary
+            virtual bool read(const dictionary& dict) ;
+
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+
+#endif
+
+// ************************************************************************* //
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.C b/src/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.C
rename to src/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.H b/src/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.H
rename to src/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSourceIO.C b/src/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSourceIO.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSourceIO.C
rename to src/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSourceIO.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSource.C b/src/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSource.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSource.C
rename to src/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSource.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSource.H b/src/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSource.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSource.H
rename to src/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSource.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSourceTemplates.C b/src/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSourceTemplates.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSourceTemplates.C
rename to src/fieldSources/basicSource/radialActuationDiskSource/radialActuationDiskSourceTemplates.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/bladeModel/bladeModel.C b/src/fieldSources/basicSource/rotorDiskSource/bladeModel/bladeModel.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/bladeModel/bladeModel.C
rename to src/fieldSources/basicSource/rotorDiskSource/bladeModel/bladeModel.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/bladeModel/bladeModel.H b/src/fieldSources/basicSource/rotorDiskSource/bladeModel/bladeModel.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/bladeModel/bladeModel.H
rename to src/fieldSources/basicSource/rotorDiskSource/bladeModel/bladeModel.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/lookup/lookupProfile.C b/src/fieldSources/basicSource/rotorDiskSource/profileModel/lookup/lookupProfile.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/lookup/lookupProfile.C
rename to src/fieldSources/basicSource/rotorDiskSource/profileModel/lookup/lookupProfile.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/lookup/lookupProfile.H b/src/fieldSources/basicSource/rotorDiskSource/profileModel/lookup/lookupProfile.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/lookup/lookupProfile.H
rename to src/fieldSources/basicSource/rotorDiskSource/profileModel/lookup/lookupProfile.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/profileModel.C b/src/fieldSources/basicSource/rotorDiskSource/profileModel/profileModel.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/profileModel.C
rename to src/fieldSources/basicSource/rotorDiskSource/profileModel/profileModel.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/profileModel.H b/src/fieldSources/basicSource/rotorDiskSource/profileModel/profileModel.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/profileModel.H
rename to src/fieldSources/basicSource/rotorDiskSource/profileModel/profileModel.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/profileModelList.C b/src/fieldSources/basicSource/rotorDiskSource/profileModel/profileModelList.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/profileModelList.C
rename to src/fieldSources/basicSource/rotorDiskSource/profileModel/profileModelList.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/profileModelList.H b/src/fieldSources/basicSource/rotorDiskSource/profileModel/profileModelList.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/profileModelList.H
rename to src/fieldSources/basicSource/rotorDiskSource/profileModel/profileModelList.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/series/seriesProfile.C b/src/fieldSources/basicSource/rotorDiskSource/profileModel/series/seriesProfile.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/series/seriesProfile.C
rename to src/fieldSources/basicSource/rotorDiskSource/profileModel/series/seriesProfile.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/series/seriesProfile.H b/src/fieldSources/basicSource/rotorDiskSource/profileModel/series/seriesProfile.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/profileModel/series/seriesProfile.H
rename to src/fieldSources/basicSource/rotorDiskSource/profileModel/series/seriesProfile.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/rotorDiskSource.C b/src/fieldSources/basicSource/rotorDiskSource/rotorDiskSource.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/rotorDiskSource.C
rename to src/fieldSources/basicSource/rotorDiskSource/rotorDiskSource.C
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/rotorDiskSource.H b/src/fieldSources/basicSource/rotorDiskSource/rotorDiskSource.H
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/rotorDiskSource.H
rename to src/fieldSources/basicSource/rotorDiskSource/rotorDiskSource.H
diff --git a/src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/rotorDiskSourceTemplates.C b/src/fieldSources/basicSource/rotorDiskSource/rotorDiskSourceTemplates.C
similarity index 100%
rename from src/finiteVolume/cfdTools/general/fieldSources/basicSource/rotorDiskSource/rotorDiskSourceTemplates.C
rename to src/fieldSources/basicSource/rotorDiskSource/rotorDiskSourceTemplates.C