diff --git a/applications/solvers/lagrangian/porousExplicitSourceReactingParcelFoam/rhoEqn.H b/applications/solvers/lagrangian/porousExplicitSourceReactingParcelFoam/rhoEqn.H
index b1770a5a9d56b0b94c6431caf2b1d1adeadf3cb4..33b7943cadd9e1ecb3433927e4e1a5db4fb543df 100644
--- a/applications/solvers/lagrangian/porousExplicitSourceReactingParcelFoam/rhoEqn.H
+++ b/applications/solvers/lagrangian/porousExplicitSourceReactingParcelFoam/rhoEqn.H
@@ -39,8 +39,6 @@ Description
       + massSource.SuTot()
     );
 
-    rhoEqn.relax();
-
     rhoEqn.solve();
 }
 
diff --git a/src/transportModels/incompressible/viscosityModels/HerschelBulkley/HerschelBulkley.C b/src/transportModels/incompressible/viscosityModels/HerschelBulkley/HerschelBulkley.C
index 52085f8b694aa5093e32c32a47e53923e51a96b9..c1b4132323ebded70dc7dc3ea56c2cba8d98c3c9 100644
--- a/src/transportModels/incompressible/viscosityModels/HerschelBulkley/HerschelBulkley.C
+++ b/src/transportModels/incompressible/viscosityModels/HerschelBulkley/HerschelBulkley.C
@@ -52,10 +52,28 @@ Foam::viscosityModels::HerschelBulkley::calcNu() const
 {
     dimensionedScalar tone("tone", dimTime, 1.0);
     dimensionedScalar rtone("rtone", dimless/dimTime, 1.0);
+
     tmp<volScalarField> sr(strainRate());
-    return (min(nu0_,(tau0_ + k_* rtone *( pow(tone * sr(), n_)
-        - pow(tone*tau0_/nu0_,n_))) / (max(sr(), dimensionedScalar
-        ("VSMALL", dimless/dimTime, VSMALL)))));
+
+ // return
+ // (
+ //     min
+ //     (
+ //         nu0_,
+ //         (tau0_ + k_*rtone*(pow(tone*sr(), n_) - pow(tone*tau0_/nu0_, n_)))
+ //        /max(sr(), dimensionedScalar("VSMALL", dimless/dimTime, VSMALL))
+ //     )
+ // );
+
+    return
+    (
+        min
+        (
+            nu0_,
+            (tau0_ + k_*rtone*pow(tone*sr(), n_))
+           /(max(sr(), dimensionedScalar ("VSMALL", dimless/dimTime, VSMALL)))
+        )
+    );
 }
 
 
diff --git a/src/transportModels/incompressible/viscosityModels/viscosityModel/viscosityModel.C b/src/transportModels/incompressible/viscosityModels/viscosityModel/viscosityModel.C
index 493cb89df693c887ba1760199766983277acae58..57be63e30e790108f5d5b151daad1c6fb4a23690 100644
--- a/src/transportModels/incompressible/viscosityModels/viscosityModel/viscosityModel.C
+++ b/src/transportModels/incompressible/viscosityModels/viscosityModel/viscosityModel.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2004-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -57,7 +57,7 @@ Foam::viscosityModel::viscosityModel
 
 Foam::tmp<Foam::volScalarField> Foam::viscosityModel::strainRate() const
 {
-    return mag(symm(fvc::grad(U_)));
+    return sqrt(2.0)*mag(symm(fvc::grad(U_)));
 }
 
 
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionLiquidHeater/system/bottomWater/fvSolution b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionLiquidHeater/system/bottomWater/fvSolution
index 48dae067cb1f5d74b838ad535f602657994ef013..5004b930128306b2f5d0e559b3f5c53da0bddb38 100644
--- a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionLiquidHeater/system/bottomWater/fvSolution
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionLiquidHeater/system/bottomWater/fvSolution
@@ -77,7 +77,7 @@ PIMPLE
 
 relaxationFactors
 {
-    "h.*            1;
+    "h.*"           1;
     "U.*"           1;
 }
 
diff --git a/tutorials/incompressible/simpleFoam/motorBike/0.org/U b/tutorials/incompressible/simpleFoam/motorBike/0.org/U
index 0e62e1551fe3c11c8c331608c8b26dfe21ad788c..c1fb7eec0af63be41c2ebbc071fc960eb614b660 100644
--- a/tutorials/incompressible/simpleFoam/motorBike/0.org/U
+++ b/tutorials/incompressible/simpleFoam/motorBike/0.org/U
@@ -35,7 +35,7 @@ boundaryField
     lowerWall
     {
         type            fixedValue;
-        value           uniform (20 0 0);
+        value           $internalField;
     }
 
     "motorBike_.*"
diff --git a/tutorials/mesh/snappyHexMesh/flange/Allclean b/tutorials/mesh/snappyHexMesh/flange/Allclean
index 884d713e5fedd6303575897115ee9c9414fc8d62..abb949539e952db42aa6e3dd4a7c754385a0b406 100755
--- a/tutorials/mesh/snappyHexMesh/flange/Allclean
+++ b/tutorials/mesh/snappyHexMesh/flange/Allclean
@@ -5,7 +5,7 @@ cd ${0%/*} || exit 1    # run from this directory
 . $WM_PROJECT_DIR/bin/tools/CleanFunctions
 
 rm -rf 0 > /dev/null 2>&1
-rm -f ./*.obj > /dev/null 2>&1
+rm -f ./flange ./*.obj > /dev/null 2>&1
 rm -rf constant/extendedFeatureEdgeMesh > /dev/null 2>&1
 rm -f constant/triSurface/flange.eMesh > /dev/null 2>&1
 rm -f constant/polyMesh/boundary