turbulenceModels::RAS: Corrected sign of "C3" dilatation term

Set default value of C3 to 0
Set C3 to -0.33 in the engineFoam/kivaTest tutorial.

Resolves bug-report https://bugs.openfoam.org/view.php?id=2496

src/TurbulenceModels/turbulenceModels/RAS/LaunderSharmaKE/LaunderSharmaKE.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -153,7 +153,7 @@ LaunderSharmaKE<BasicTurbulenceModel>::LaunderSharmaKE
         (
             "C3",
             this->coeffDict_,
-            -0.33
+            0
         )
     ),
     sigmak_
@@ -273,7 +273,7 @@ void LaunderSharmaKE<BasicTurbulenceModel>::correct()
       - fvm::laplacian(alpha*rho*DepsilonEff(), epsilon_)
      ==
         C1_*alpha*rho*G*epsilon_/k_
-      - fvm::SuSp(((2.0/3.0)*C1_ + C3_)*alpha*rho*divU, epsilon_)
+      - fvm::SuSp(((2.0/3.0)*C1_ - C3_)*alpha*rho*divU, epsilon_)
       - fvm::Sp(C2_*f2()*alpha*rho*epsilon_/k_, epsilon_)
       + alpha*rho*E
       + epsilonSource()

src/TurbulenceModels/turbulenceModels/RAS/RNGkEpsilon/RNGkEpsilon.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -137,7 +137,7 @@ RNGkEpsilon<BasicTurbulenceModel>::RNGkEpsilon
         (
             "C3",
             this->coeffDict_,
-            -0.33
+            0
         )
     ),
     sigmak_
@@ -282,7 +282,7 @@ void RNGkEpsilon<BasicTurbulenceModel>::correct()
       - fvm::laplacian(alpha*rho*DepsilonEff(), epsilon_)
      ==
         (C1_ - R)*alpha*rho*G*epsilon_/k_
-      - fvm::SuSp(((2.0/3.0)*C1_ + C3_)*alpha*rho*divU, epsilon_)
+      - fvm::SuSp(((2.0/3.0)*C1_ - C3_)*alpha*rho*divU, epsilon_)
       - fvm::Sp(C2_*alpha*rho*epsilon_/k_, epsilon_)
       + epsilonSource()
       + fvOptions(alpha, rho, epsilon_)

src/TurbulenceModels/turbulenceModels/RAS/kEpsilon/kEpsilon.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -137,7 +137,7 @@ kEpsilon<BasicTurbulenceModel>::kEpsilon
         (
             "C3",
             this->coeffDict_,
-            -0.33
+            0
         )
     ),
     sigmak_
@@ -259,7 +259,7 @@ void kEpsilon<BasicTurbulenceModel>::correct()
       - fvm::laplacian(alpha*rho*DepsilonEff(), epsilon_)
      ==
         C1_*alpha()*rho()*G*epsilon_()/k_()
-      - fvm::SuSp(((2.0/3.0)*C1_ + C3_)*alpha()*rho()*divU, epsilon_)
+      - fvm::SuSp(((2.0/3.0)*C1_ - C3_)*alpha()*rho()*divU, epsilon_)
       - fvm::Sp(C2_*alpha()*rho()*epsilon_()/k_(), epsilon_)
       + epsilonSource()
       + fvOptions(alpha, rho, epsilon_)

tutorials/combustion/engineFoam/kivaTest/constant/turbulenceProperties

@@ -24,6 +24,11 @@ RAS
     turbulence      on;
 
     printCoeffs     on;
+
+    kEpsilonCoeffs
+    {
+        C3          -0.33;
+    }
 }