diff --git a/src/finiteVolume/cfdTools/general/porosityModel/DarcyForchheimer/DarcyForchheimer.C b/src/finiteVolume/cfdTools/general/porosityModel/DarcyForchheimer/DarcyForchheimer.C
index 619ce5f1a34dfe2186a7609d07acad79c26efa6e..3036baff95b702e0e67d559bec552c1f7a1b5200 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/DarcyForchheimer/DarcyForchheimer.C
+++ b/src/finiteVolume/cfdTools/general/porosityModel/DarcyForchheimer/DarcyForchheimer.C
@@ -52,19 +52,31 @@ Foam::porosityModels::DarcyForchheimer::DarcyForchheimer
 )
 :
     porosityModel(name, modelType, mesh, dict, cellZoneName),
+    dXYZ_(coeffs_.lookup("d")),
+    fXYZ_(coeffs_.lookup("f")),
     D_(cellZoneIDs_.size()),
     F_(cellZoneIDs_.size()),
     rhoName_(coeffs_.lookupOrDefault<word>("rho", "rho")),
     muName_(coeffs_.lookupOrDefault<word>("mu", "thermo:mu")),
     nuName_(coeffs_.lookupOrDefault<word>("nu", "nu"))
 {
+    adjustNegativeResistance(dXYZ_);
+    adjustNegativeResistance(fXYZ_);
 
-    dimensionedVector d(coeffs_.lookup("d"));
-    dimensionedVector f(coeffs_.lookup("f"));
+    calcTranformModelData();
+}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::porosityModels::DarcyForchheimer::~DarcyForchheimer()
+{}
 
-    adjustNegativeResistance(d);
-    adjustNegativeResistance(f);
 
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+void Foam::porosityModels::DarcyForchheimer::calcTranformModelData()
+{
     if (coordSys_.R().uniform())
     {
         forAll (cellZoneIDs_, zoneI)
@@ -72,20 +84,19 @@ Foam::porosityModels::DarcyForchheimer::DarcyForchheimer
             D_[zoneI].setSize(1, tensor::zero);
             F_[zoneI].setSize(1, tensor::zero);
 
-            D_[zoneI][0].xx() = d.value().x();
-            D_[zoneI][0].yy() = d.value().y();
-            D_[zoneI][0].zz() = d.value().z();
+            D_[zoneI][0].xx() = dXYZ_.value().x();
+            D_[zoneI][0].yy() = dXYZ_.value().y();
+            D_[zoneI][0].zz() = dXYZ_.value().z();
 
             D_[zoneI][0] = coordSys_.R().transformTensor(D_[zoneI][0]);
 
             // leading 0.5 is from 1/2*rho
-            F_[zoneI][0].xx() = 0.5*f.value().x();
-            F_[zoneI][0].yy() = 0.5*f.value().y();
-            F_[zoneI][0].zz() = 0.5*f.value().z();
+            F_[zoneI][0].xx() = 0.5*fXYZ_.value().x();
+            F_[zoneI][0].yy() = 0.5*fXYZ_.value().y();
+            F_[zoneI][0].zz() = 0.5*fXYZ_.value().z();
 
             F_[zoneI][0] = coordSys_.R().transformTensor(F_[zoneI][0]);
         }
-
     }
     else
     {
@@ -98,14 +109,14 @@ Foam::porosityModels::DarcyForchheimer::DarcyForchheimer
 
             forAll(cells, i)
             {
-                D_[zoneI][i].xx() = d.value().x();
-                D_[zoneI][i].yy() = d.value().y();
-                D_[zoneI][i].zz() = d.value().z();
+                D_[zoneI][i].xx() = dXYZ_.value().x();
+                D_[zoneI][i].yy() = dXYZ_.value().y();
+                D_[zoneI][i].zz() = dXYZ_.value().z();
 
                 // leading 0.5 is from 1/2*rho
-                F_[zoneI][i].xx() = 0.5*f.value().x();
-                F_[zoneI][i].yy() = 0.5*f.value().y();
-                F_[zoneI][i].zz() = 0.5*f.value().z();
+                F_[zoneI][i].xx() = 0.5*fXYZ_.value().x();
+                F_[zoneI][i].yy() = 0.5*fXYZ_.value().y();
+                F_[zoneI][i].zz() = 0.5*fXYZ_.value().z();
             }
 
             D_[zoneI] = coordSys_.R().transformTensor(D_[zoneI], cells);
@@ -115,14 +126,6 @@ Foam::porosityModels::DarcyForchheimer::DarcyForchheimer
 }
 
 
-// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
-
-Foam::porosityModels::DarcyForchheimer::~DarcyForchheimer()
-{}
-
-
-// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
-
 void Foam::porosityModels::DarcyForchheimer::calcForce
 (
     const volVectorField& U,
diff --git a/src/finiteVolume/cfdTools/general/porosityModel/DarcyForchheimer/DarcyForchheimer.H b/src/finiteVolume/cfdTools/general/porosityModel/DarcyForchheimer/DarcyForchheimer.H
index 7b6ea1dd4e5c0c2d0649d826b59f399972335aaa..119cb9df684f0607208fda6eef997a9027b611cb 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/DarcyForchheimer/DarcyForchheimer.H
+++ b/src/finiteVolume/cfdTools/general/porosityModel/DarcyForchheimer/DarcyForchheimer.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2014 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -74,11 +74,16 @@ private:
 
     // Private data
 
+        //- Darcy coeffient XYZ components (user-supplied) [1/m2]
+        dimensionedVector dXYZ_;
 
-        //- Darcy coefficient [1/m2]
+        //- Forchheimer coeffient XYZ components (user-supplied) [1/m]
+        dimensionedVector fXYZ_;
+
+        //- Darcy coefficient - converted from dXYZ [1/m2]
         List<tensorField> D_;
 
-        //- Forchheimer coefficient [1/m]
+        //- Forchheimer coefficient - converted from fXYZ [1/m]
         List<tensorField> F_;
 
         //- Name of density field
@@ -143,6 +148,9 @@ public:
 
     // Member Functions
 
+        //- Transform the model data wrt mesh changes
+        virtual void calcTranformModelData();
+
         //- Calculate the porosity force
         virtual void calcForce
         (
diff --git a/src/finiteVolume/cfdTools/general/porosityModel/fixedCoeff/fixedCoeff.C b/src/finiteVolume/cfdTools/general/porosityModel/fixedCoeff/fixedCoeff.C
index bb7c3c9d7ecbf08b29e7b9c62053a71ffb5e98e0..c3ef2826a59722291d749d4a7e540a4391f36ab7 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/fixedCoeff/fixedCoeff.C
+++ b/src/finiteVolume/cfdTools/general/porosityModel/fixedCoeff/fixedCoeff.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2014 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -111,15 +111,28 @@ Foam::porosityModels::fixedCoeff::fixedCoeff
 )
 :
     porosityModel(name, modelType, mesh, dict, cellZoneName),
+    alphaXYZ_(coeffs_.lookup("alpha")),
+    betaXYZ_(coeffs_.lookup("beta")),
     alpha_(cellZoneIDs_.size()),
     beta_(cellZoneIDs_.size())
 {
-    dimensionedVector alpha(coeffs_.lookup("alpha"));
-    dimensionedVector beta(coeffs_.lookup("beta"));
+    adjustNegativeResistance(alphaXYZ_);
+    adjustNegativeResistance(betaXYZ_);
 
-    adjustNegativeResistance(alpha);
-    adjustNegativeResistance(beta);
+    calcTranformModelData();
+}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::porosityModels::fixedCoeff::~fixedCoeff()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
+void Foam::porosityModels::fixedCoeff::calcTranformModelData()
+{
     if (coordSys_.R().uniform())
     {
         forAll (cellZoneIDs_, zoneI)
@@ -127,14 +140,14 @@ Foam::porosityModels::fixedCoeff::fixedCoeff
             alpha_[zoneI].setSize(1, tensor::zero);
             beta_[zoneI].setSize(1, tensor::zero);
 
-            alpha_[zoneI][0].xx() = alpha.value().x();
-            alpha_[zoneI][0].yy() = alpha.value().y();
-            alpha_[zoneI][0].zz() = alpha.value().z();
+            alpha_[zoneI][0].xx() = alphaXYZ_.value().x();
+            alpha_[zoneI][0].yy() = alphaXYZ_.value().y();
+            alpha_[zoneI][0].zz() = alphaXYZ_.value().z();
             alpha_[zoneI][0] = coordSys_.R().transformTensor(alpha_[zoneI][0]);
 
-            beta_[zoneI][0].xx() = beta.value().x();
-            beta_[zoneI][0].yy() = beta.value().y();
-            beta_[zoneI][0].zz() = beta.value().z();
+            beta_[zoneI][0].xx() = betaXYZ_.value().x();
+            beta_[zoneI][0].yy() = betaXYZ_.value().y();
+            beta_[zoneI][0].zz() = betaXYZ_.value().z();
             beta_[zoneI][0] = coordSys_.R().transformTensor(beta_[zoneI][0]);
         }
     }
@@ -149,13 +162,13 @@ Foam::porosityModels::fixedCoeff::fixedCoeff
 
             forAll(cells, i)
             {
-                alpha_[zoneI][i].xx() = alpha.value().x();
-                alpha_[zoneI][i].yy() = alpha.value().y();
-                alpha_[zoneI][i].zz() = alpha.value().z();
+                alpha_[zoneI][i].xx() = alphaXYZ_.value().x();
+                alpha_[zoneI][i].yy() = alphaXYZ_.value().y();
+                alpha_[zoneI][i].zz() = alphaXYZ_.value().z();
 
-                beta_[zoneI][i].xx() = beta.value().x();
-                beta_[zoneI][i].yy() = beta.value().y();
-                beta_[zoneI][i].zz() = beta.value().z();
+                beta_[zoneI][i].xx() = betaXYZ_.value().x();
+                beta_[zoneI][i].yy() = betaXYZ_.value().y();
+                beta_[zoneI][i].zz() = betaXYZ_.value().z();
             }
 
             alpha_[zoneI] =
@@ -167,14 +180,6 @@ Foam::porosityModels::fixedCoeff::fixedCoeff
 }
 
 
-// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
-
-Foam::porosityModels::fixedCoeff::~fixedCoeff()
-{}
-
-
-// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
-
 void Foam::porosityModels::fixedCoeff::calcForce
 (
     const volVectorField& U,
diff --git a/src/finiteVolume/cfdTools/general/porosityModel/fixedCoeff/fixedCoeff.H b/src/finiteVolume/cfdTools/general/porosityModel/fixedCoeff/fixedCoeff.H
index 7154cdf2c4dd937122f43b6a4b305101966843f9..ad441f3ac104f8d3f31f226e0cbbc31332b17e1e 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/fixedCoeff/fixedCoeff.H
+++ b/src/finiteVolume/cfdTools/general/porosityModel/fixedCoeff/fixedCoeff.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2014 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -64,10 +64,16 @@ private:
 
     // Private data
 
-        //- Model alpha coefficient [1/s]
+        //- alpha coefficient XYZ components (user-supplied) [1/s]
+        dimensionedVector alphaXYZ_;
+
+        //- beta coefficient XYZ components (user-supplied) [1/m]
+        dimensionedVector betaXYZ_;
+
+        //- Model alpha coefficient - converted from alphaXYZ [1/s]
         List<tensorField> alpha_;
 
-        //- Model beta coefficient [1/m]
+        //- Model beta coefficient - converted from betaXYZ [1/m]
         List<tensorField> beta_;
 
 
@@ -119,6 +125,9 @@ public:
 
     // Member Functions
 
+        //- Transform the model data wrt mesh changes
+        virtual void calcTranformModelData();
+
         //- Calculate the porosity force
         virtual void calcForce
         (
diff --git a/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModel.C b/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModel.C
index 81d722a57bbbfc29865c834d75b1b5158466904b..613248b05fe23d4201708e158edb17e9d6967da5 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModel.C
+++ b/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModel.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2014 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -147,13 +147,27 @@ Foam::porosityModel::~porosityModel()
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
+void Foam::porosityModel::transformModelData()
+{
+    if (!mesh_.upToDatePoints(*this))
+    {
+        calcTranformModelData();
+
+        // set model up-to-date wrt points
+        mesh_.setUpToDatePoints(*this);
+    }
+}
+
+
 Foam::tmp<Foam::vectorField> Foam::porosityModel::porosityModel::force
 (
     const volVectorField& U,
     const volScalarField& rho,
     const volScalarField& mu
-) const
+)
 {
+    transformModelData();
+
     tmp<vectorField> tforce(new vectorField(U.size(), vector::zero));
 
     if (!cellZoneIDs_.empty())
@@ -165,16 +179,14 @@ Foam::tmp<Foam::vectorField> Foam::porosityModel::porosityModel::force
 }
 
 
-void Foam::porosityModel::addResistance
-(
-    fvVectorMatrix& UEqn
-) const
+void Foam::porosityModel::addResistance(fvVectorMatrix& UEqn)
 {
     if (cellZoneIDs_.empty())
     {
         return;
     }
 
+    transformModelData();
     this->correct(UEqn);
 }
 
@@ -184,13 +196,14 @@ void Foam::porosityModel::addResistance
     fvVectorMatrix& UEqn,
     const volScalarField& rho,
     const volScalarField& mu
-) const
+)
 {
     if (cellZoneIDs_.empty())
     {
         return;
     }
 
+    transformModelData();
     this->correct(UEqn, rho, mu);
 }
 
@@ -200,13 +213,14 @@ void Foam::porosityModel::addResistance
     const fvVectorMatrix& UEqn,
     volTensorField& AU,
     bool correctAUprocBC
-) const
+)
 {
     if (cellZoneIDs_.empty())
     {
         return;
     }
 
+    transformModelData();
     this->correct(UEqn, AU);
 
     if (correctAUprocBC)
@@ -219,24 +233,12 @@ void Foam::porosityModel::addResistance
 }
 
 
-bool Foam::porosityModel::movePoints()
-{
-    // no updates necessary; all member data independent of mesh
-    return true;
-}
-
-
-void Foam::porosityModel::updateMesh(const mapPolyMesh& mpm)
-{
-    // no updates necessary; all member data independent of mesh
-}
-
-
 bool Foam::porosityModel::writeData(Ostream& os) const
 {
     return true;
 }
 
+
 bool Foam::porosityModel::read(const dictionary& dict)
 {
     active_ = readBool(dict.lookup("active"));
diff --git a/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModel.H b/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModel.H
index 06df0bfdae4fba64418f66cb9c2889c2280b1cf0..a3b4b0f0e098f3c355da07ba810e6002bf500b81 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModel.H
+++ b/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModel.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2014 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -99,6 +99,10 @@ protected:
 
     // Protected Member Functions
 
+
+        //- Transform the model data wrt mesh changes
+        virtual void calcTranformModelData() = 0;
+
         //- Adjust negative resistance values to be multiplier of max value
         void adjustNegativeResistance(dimensionedVector& resist);
 
@@ -221,16 +225,19 @@ public:
         //- Return const access to the cell zone IDs
         inline const labelList& cellZoneIDs() const;
 
+        //- Transform the model data wrt mesh changes
+        virtual void transformModelData();
+
         //- Return the force over the cell zone(s)
         virtual tmp<vectorField> force
         (
             const volVectorField& U,
             const volScalarField& rho,
             const volScalarField& mu
-        ) const;
+        );
 
         //- Add resistance
-        virtual void addResistance(fvVectorMatrix& UEqn) const;
+        virtual void addResistance(fvVectorMatrix& UEqn);
 
         //- Add resistance
         virtual void addResistance
@@ -238,7 +245,7 @@ public:
             fvVectorMatrix& UEqn,
             const volScalarField& rho,
             const volScalarField& mu
-        ) const;
+        );
 
         //- Add resistance
         virtual void addResistance
@@ -246,16 +253,7 @@ public:
             const fvVectorMatrix& UEqn,
             volTensorField& AU,
             bool correctAUprocBC
-        ) const;
-
-
-    // Topology change
-
-        //- Move points
-        virtual bool movePoints();
-
-        //- Update on meshUpdate
-        virtual void updateMesh(const mapPolyMesh& mpm);
+        );
 
 
     // I-O
diff --git a/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModelList.C b/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModelList.C
index df3028547cb2c9e835cb4727af38cb90f6f7e24d..339ea07b73f942176efea0b6586aee8d2a576706 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModelList.C
+++ b/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModelList.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2014 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -126,7 +126,7 @@ bool Foam::porosityModelList::writeData(Ostream& os) const
 void Foam::porosityModelList::addResistance
 (
     fvVectorMatrix& UEqn
-) const
+)
 {
     forAll(*this, i)
     {
@@ -140,7 +140,7 @@ void Foam::porosityModelList::addResistance
     fvVectorMatrix& UEqn,
     const volScalarField& rho,
     const volScalarField& mu
-) const
+)
 {
     forAll(*this, i)
     {
@@ -154,7 +154,7 @@ void Foam::porosityModelList::addResistance
     const fvVectorMatrix& UEqn,
     volTensorField& AU,
     bool correctAUprocBC         
-) const
+)
 {
     forAll(*this, i)
     {
diff --git a/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModelList.H b/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModelList.H
index 8b79095b0daa60e365d1940bd02855f9192d0e8e..3e953c30ef5455f7216a06d04b0cb43fc9339b6c 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModelList.H
+++ b/src/finiteVolume/cfdTools/general/porosityModel/porosityModel/porosityModelList.H
@@ -94,7 +94,7 @@ public:
         void reset(const dictionary& dict);
 
         //- Add resistance
-        void addResistance(fvVectorMatrix& UEqn) const;
+        void addResistance(fvVectorMatrix& UEqn);
 
         //- Add resistance
         void addResistance
@@ -102,7 +102,7 @@ public:
             fvVectorMatrix& UEqn,
             const volScalarField& rho,
             const volScalarField& mu
-        ) const;
+        );
 
         //- Add resistance
         void addResistance
@@ -110,7 +110,7 @@ public:
             const fvVectorMatrix& UEqn,
             volTensorField& AU,
             bool correctAUprocBC = true
-        ) const;
+        );
 
 
         // I-O
diff --git a/src/finiteVolume/cfdTools/general/porosityModel/powerLaw/powerLaw.C b/src/finiteVolume/cfdTools/general/porosityModel/powerLaw/powerLaw.C
index ae9d5641e436acfef7260fa063fede226d6a43c1..8a8361db8e6a5c1dd3e3c82181861b6527675c23 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/powerLaw/powerLaw.C
+++ b/src/finiteVolume/cfdTools/general/porosityModel/powerLaw/powerLaw.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2014 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -66,6 +66,12 @@ Foam::porosityModels::powerLaw::~powerLaw()
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
+void Foam::porosityModels::powerLaw::calcTranformModelData()
+{
+    // nothing to be transformed
+}
+
+
 void Foam::porosityModels::powerLaw::calcForce
 (
     const volVectorField& U,
diff --git a/src/finiteVolume/cfdTools/general/porosityModel/powerLaw/powerLaw.H b/src/finiteVolume/cfdTools/general/porosityModel/powerLaw/powerLaw.H
index 299335b7294db56343e8b9533b915b8b6b5df012..0bd9be2a99d3b94c955a76b1cf8dd981d44ab759 100644
--- a/src/finiteVolume/cfdTools/general/porosityModel/powerLaw/powerLaw.H
+++ b/src/finiteVolume/cfdTools/general/porosityModel/powerLaw/powerLaw.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2014 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -127,6 +127,9 @@ public:
 
     // Member Functions
 
+        //- Transform the model data wrt mesh changes
+        virtual void calcTranformModelData();
+
         //- Calculate the porosity force
         virtual void calcForce
         (