diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/G b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/G
new file mode 100644
index 0000000000000000000000000000000000000000..c6af56740ee2a710002815260480e112fc3faa0a
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/G
@@ -0,0 +1,62 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object G;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [1 0 -3 0 0 0 0];
+
+internalField uniform 0;
+
+boundaryField
+{
+ maxY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ maxX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ maxZ
+ {
+ type calculated;
+ value uniform 0;
+ }
+ air_to_floor
+ {
+ type calculated;
+ value uniform 0;
+ }
+ air_to_solid
+ {
+ type calculated;
+ value uniform 0;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/IDefault b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/IDefault
new file mode 100644
index 0000000000000000000000000000000000000000..14ca932cec1a3ece0f36b6c153e66b3c6886e364
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/IDefault
@@ -0,0 +1,62 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object IDefault;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [ 1 0 -3 0 0 0 0 ];
+
+internalField uniform 0;
+
+boundaryField
+{
+ maxY
+ {
+ type wideBandDiffusiveRadiation;
+ value uniform 0;
+ }
+ minX
+ {
+ type wideBandDiffusiveRadiation;
+ value uniform 0;
+ }
+ maxX
+ {
+ type wideBandDiffusiveRadiation;
+ value uniform 0;
+ }
+ minY
+ {
+ type wideBandDiffusiveRadiation;
+ value uniform 0;
+ }
+ maxZ
+ {
+ type wideBandDiffusiveRadiation;
+ value uniform 0;
+ }
+ air_to_floor
+ {
+ type wideBandDiffusiveRadiation;
+ value uniform 0;
+ }
+ air_to_solid
+ {
+ type wideBandDiffusiveRadiation;
+ value uniform 0;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/T b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/T
new file mode 100644
index 0000000000000000000000000000000000000000..06ec8c3a4ef05a22f854cf3fea826e9e05d60373
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/T
@@ -0,0 +1,77 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object T;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [ 0 0 0 1 0 0 0 ];
+
+internalField uniform 300;
+
+boundaryField
+{
+ maxY
+ {
+ type inletOutlet;
+ value uniform 300;
+ inletValue uniform 300;
+ }
+ minX
+ {
+ type inletOutlet;
+ value uniform 300;
+ inletValue uniform 300;
+ }
+ maxX
+ {
+ type inletOutlet;
+ value uniform 300;
+ inletValue uniform 300;
+ }
+ minY
+ {
+ type inletOutlet;
+ value uniform 300;
+ inletValue uniform 300;
+ }
+ maxZ
+ {
+ type inletOutlet;
+ value uniform 300;
+ inletValue uniform 300;
+ }
+ air_to_floor
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ value uniform 350;
+ Tnbr T;
+ kappaMethod fluidThermo;
+ qrNbr none;
+ qr qr;
+ kappa none;
+ }
+ air_to_solid
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ value uniform 350;
+ Tnbr T;
+ kappaMethod fluidThermo;
+ qrNbr none;
+ qr qr;
+ kappa none;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/U b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/U
new file mode 100644
index 0000000000000000000000000000000000000000..90357f56bb2cf04efc3d772fea2419dc2f573431
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/U
@@ -0,0 +1,74 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volVectorField;
+ location "0/air";
+ object U;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [ 0 1 -1 0 0 0 0 ];
+
+internalField uniform ( 0.1 0 0 );
+
+boundaryField
+{
+ maxY
+ {
+ type pressureInletOutletVelocity;
+ value uniform ( 0 0 0 );
+ phi phi;
+ }
+ minX
+ {
+ type pressureInletOutletVelocity;
+ value uniform ( 0 0 0 );
+ phi phi;
+ }
+ maxX
+ {
+ type pressureInletOutletVelocity;
+ value uniform ( 0 0 0 );
+ phi phi;
+ }
+ minY
+ {
+ type pressureInletOutletVelocity;
+ value uniform ( 0 0 0 );
+ phi phi;
+ }
+ maxZ
+ {
+ type pressureInletOutletVelocity;
+ value uniform ( 0 0 0 );
+ phi phi;
+ }
+ air_to_floor
+ {
+ type fixedValue;
+ value uniform ( 0 0 0 );
+ phi phi;
+ }
+ air_to_solid
+ {
+ type fixedValue;
+ value uniform ( 0 0 0 );
+ phi phi;
+ }
+ region0_to_floor_floor_zone
+ {
+ type fixedValue;
+ value uniform ( 0 0 0 );
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/alphat b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/alphat
new file mode 100644
index 0000000000000000000000000000000000000000..068430f16b1fecc192ef3bc39bd3e9e826e2fb2d
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/alphat
@@ -0,0 +1,64 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object alphat;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [1 -1 -1 0 0 0 0];
+
+internalField uniform 0;
+
+boundaryField
+{
+ maxY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ maxX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ maxZ
+ {
+ type calculated;
+ value uniform 0;
+ }
+ air_to_floor
+ {
+ type compressible::alphatWallFunction;
+ Prt 0.85;
+ value uniform 0;
+ }
+ air_to_solid
+ {
+ type compressible::alphatWallFunction;
+ Prt 0.85;
+ value uniform 0;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/epsilon b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/epsilon
new file mode 100644
index 0000000000000000000000000000000000000000..58a7088796016c935aa8a060ed790b6553b20b01
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/epsilon
@@ -0,0 +1,69 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object epsilon;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [ 0 2 -3 0 0 0 0 ];
+
+internalField uniform 0.01;
+
+boundaryField
+{
+ maxY
+ {
+ type inletOutlet;
+ value uniform 0.01;
+ inletValue uniform 0.01;
+ }
+ minX
+ {
+ type inletOutlet;
+ value uniform 0.01;
+ inletValue uniform 0.01;
+ }
+ maxX
+ {
+ type inletOutlet;
+ value uniform 0.01;
+ inletValue uniform 0.01;
+ }
+ minY
+ {
+ type inletOutlet;
+ value uniform 0.01;
+ inletValue uniform 0.01;
+ }
+ maxZ
+ {
+ type inletOutlet;
+ value uniform 0.01;
+ inletValue uniform 0.01;
+ }
+ air_to_floor
+ {
+ type epsilonWallFunction;
+ value uniform 0.01;
+ inletValue uniform 0.01;
+ }
+ air_to_solid
+ {
+ type epsilonWallFunction;
+ value uniform 0.01;
+ inletValue uniform 0.01;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/k b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/k
new file mode 100644
index 0000000000000000000000000000000000000000..63d63a60a5637ba9af4e754a792339c6a5a25607
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/k
@@ -0,0 +1,69 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object k;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [ 0 2 -2 0 0 0 0 ];
+
+internalField uniform 0.1;
+
+boundaryField
+{
+ maxY
+ {
+ type inletOutlet;
+ value uniform 0.1;
+ inletValue uniform 0.1;
+ }
+ minX
+ {
+ type inletOutlet;
+ value uniform 0.1;
+ inletValue uniform 0.1;
+ }
+ maxX
+ {
+ type inletOutlet;
+ value uniform 0.1;
+ inletValue uniform 0.1;
+ }
+ minY
+ {
+ type inletOutlet;
+ value uniform 0.1;
+ inletValue uniform 0.1;
+ }
+ maxZ
+ {
+ type inletOutlet;
+ value uniform 0.1;
+ inletValue uniform 0.1;
+ }
+ air_to_floor
+ {
+ type kqRWallFunction;
+ value uniform 0.1;
+ inletValue uniform 0.1;
+ }
+ air_to_solid
+ {
+ type kqRWallFunction;
+ value uniform 0.1;
+ inletValue uniform 0.1;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/nut b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/nut
new file mode 100644
index 0000000000000000000000000000000000000000..9d82df4312e73859ed62eab73fd83091a4dab201
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/nut
@@ -0,0 +1,68 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object nut;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [0 2 -1 0 0 0 0];
+
+internalField uniform 0;
+
+boundaryField
+{
+ maxY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ maxX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ maxZ
+ {
+ type calculated;
+ value uniform 0;
+ }
+ air_to_floor
+ {
+ type nutkWallFunction;
+ Cmu 0.09;
+ kappa 0.41;
+ E 9.8;
+ value uniform 0;
+ }
+ air_to_solid
+ {
+ type nutkWallFunction;
+ Cmu 0.09;
+ kappa 0.41;
+ E 9.8;
+ value uniform 0;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/p b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/p
new file mode 100644
index 0000000000000000000000000000000000000000..e8a0cf937e7a2a6a6af150abe0e5eb9e1aaa30fd
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/p
@@ -0,0 +1,62 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object p;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [ 1 -1 -2 0 0 0 0 ];
+
+internalField uniform 100000;
+
+boundaryField
+{
+ maxY
+ {
+ type calculated;
+ value uniform 100000;
+ }
+ minX
+ {
+ type calculated;
+ value uniform 100000;
+ }
+ maxX
+ {
+ type calculated;
+ value uniform 100000;
+ }
+ minY
+ {
+ type calculated;
+ value uniform 100000;
+ }
+ maxZ
+ {
+ type calculated;
+ value uniform 100000;
+ }
+ air_to_floor
+ {
+ type calculated;
+ value uniform 100000;
+ }
+ air_to_solid
+ {
+ type calculated;
+ value uniform 100000;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/p_rgh b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/p_rgh
new file mode 100644
index 0000000000000000000000000000000000000000..b641565959f5808122c12266a1ab2640e77d65d9
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/p_rgh
@@ -0,0 +1,62 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object p_rgh;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [ 1 -1 -2 0 0 0 0 ];
+
+internalField uniform 100000;
+
+boundaryField
+{
+ maxY
+ {
+ type totalPressure;
+ p0 $internalField;
+ }
+ minX
+ {
+ type totalPressure;
+ p0 $internalField;
+ }
+ maxX
+ {
+ type totalPressure;
+ p0 $internalField;
+ }
+ minY
+ {
+ type totalPressure;
+ p0 $internalField;
+ }
+ maxZ
+ {
+ type totalPressure;
+ p0 $internalField;
+ }
+ air_to_floor
+ {
+ type fixedFluxPressure;
+ p0 $internalField;
+ }
+ air_to_solid
+ {
+ type fixedFluxPressure;
+ p0 $internalField;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/qr b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/qr
new file mode 100644
index 0000000000000000000000000000000000000000..66453c1bae2622eeb032d0eacba0ff25469ed0e6
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/air/qr
@@ -0,0 +1,62 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/air";
+ object qr;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [1 0 -3 0 0 0 0];
+
+internalField uniform 0;
+
+boundaryField
+{
+ maxY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ maxX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ maxZ
+ {
+ type calculated;
+ value uniform 0;
+ }
+ air_to_floor
+ {
+ type calculated;
+ value uniform 0;
+ }
+ air_to_solid
+ {
+ type calculated;
+ value uniform 0;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/floor/T b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/floor/T
new file mode 100644
index 0000000000000000000000000000000000000000..bf7d3330e41cf7f9ef8ef80a94042a22038ded62
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/floor/T
@@ -0,0 +1,84 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/floor";
+ object T;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [ 0 0 0 1 0 0 0 ];
+
+internalField uniform 300;
+
+boundaryField
+{
+ maxY
+ {
+ type zeroGradient;
+ value uniform 300;
+ }
+ minX
+ {
+ type zeroGradient;
+ value uniform 300;
+ }
+ maxX
+ {
+ type zeroGradient;
+ value uniform 300;
+ }
+ minY
+ {
+ type zeroGradient;
+ value uniform 300;
+ }
+ minZ
+ {
+ type externalWallHeatFluxTemperature;
+ mode coefficient;
+ Ta uniform 313;
+ h uniform 1000000;
+ thicknessLayers ( 1 2 );
+ kappaLayers ( 100 200 );
+ kappaMethod solidThermo;
+ kappa none;
+ value uniform 300;
+ }
+ floor_to_domain3
+ {
+ type zeroGradient;
+ value uniform 300;
+ }
+ floor_to_air
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ value uniform 300;
+ Tnbr T;
+ kappaMethod solidThermo;
+ qrNbr qr;
+ qr none;
+ kappa none;
+ }
+ floor_to_solid
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ value uniform 300;
+ Tnbr T;
+ kappaMethod solidThermo;
+ qrNbr none;
+ qr none;
+ kappa none;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/floor/p b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/floor/p
new file mode 100644
index 0000000000000000000000000000000000000000..8de433ec89ec9371e82a5a24ad73823e090db4cf
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/floor/p
@@ -0,0 +1,67 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/floor";
+ object p;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [1 -1 -2 0 0 0 0];
+
+internalField uniform 100000;
+
+boundaryField
+{
+ maxY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ maxX
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minY
+ {
+ type calculated;
+ value uniform 0;
+ }
+ minZ
+ {
+ type calculated;
+ value uniform 0;
+ }
+ floor_to_domain3
+ {
+ type calculated;
+ value uniform 0;
+ }
+ floor_to_air
+ {
+ type calculated;
+ value uniform 0;
+ }
+ floor_to_solid
+ {
+ type calculated;
+ value uniform 0;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/solid/T b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/solid/T
new file mode 100644
index 0000000000000000000000000000000000000000..7960a5d5afa112462ccdc311c79d41d4e55eae94
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/solid/T
@@ -0,0 +1,52 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/solid";
+ object T;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [ 0 0 0 1 0 0 0 ];
+
+internalField uniform 350;
+
+boundaryField
+{
+ solid_to_domain3
+ {
+ type fixedValue;
+ value uniform 300;
+ }
+ solid_to_air
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ value uniform 350;
+ Tnbr T;
+ kappaMethod solidThermo;
+ qrNbr qr;
+ qr none;
+ kappa none;
+ }
+ solid_to_floor
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ value uniform 300;
+ Tnbr T;
+ kappaMethod solidThermo;
+ qrNbr none;
+ qr none;
+ kappa none;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/solid/p b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/solid/p
new file mode 100644
index 0000000000000000000000000000000000000000..0c8b07495cadadd763eb363fa55e2d3238c4e13d
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/0.orig/solid/p
@@ -0,0 +1,42 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class volScalarField;
+ location "0/solid";
+ object p;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [1 -1 -2 0 0 0 0];
+
+internalField uniform 100000;
+
+boundaryField
+{
+ solid_to_domain3
+ {
+ type calculated;
+ value uniform 0;
+ }
+ solid_to_air
+ {
+ type calculated;
+ value uniform 0;
+ }
+ solid_to_floor
+ {
+ type calculated;
+ value uniform 0;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allclean b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allclean
new file mode 100755
index 0000000000000000000000000000000000000000..28963cad53851f17aef929fc0d3ce443d7155748
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allclean
@@ -0,0 +1,12 @@
+#!/bin/sh
+cd ${0%/*} || exit 1 # Run from this directory
+. $WM_PROJECT_DIR/bin/tools/CleanFunctions # Tutorial clean functions
+
+cleanCase0
+
+rm -rf constant/cellToRegion
+rm -rf constant/*/polyMesh # region meshes
+
+rm -rf constant/triSurface
+
+#------------------------------------------------------------------------------
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allrun b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allrun
new file mode 100755
index 0000000000000000000000000000000000000000..512225721f14ecec2ba9ac276ba511037f0aa6df
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allrun
@@ -0,0 +1,16 @@
+#!/bin/sh
+cd ${0%/*} || exit 1 # Run from this directory
+. $WM_PROJECT_DIR/bin/tools/RunFunctions # Tutorial run functions
+
+# Setup case
+./Allrun.pre
+
+#-- Run on single processor
+
+runApplication $(getApplication)
+
+echo
+echo "Use paraFoam -touch-all to create files for paraview post-processing"
+echo
+
+#------------------------------------------------------------------------------
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allrun-parallel b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allrun-parallel
new file mode 100755
index 0000000000000000000000000000000000000000..c856b1fbc3b73a93b8f5c47dcecc6c54aab786a6
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allrun-parallel
@@ -0,0 +1,25 @@
+#!/bin/sh
+cd ${0%/*} || exit 1 # Run from this directory
+. $WM_PROJECT_DIR/bin/tools/RunFunctions # Tutorial run functions
+
+# Setup case
+./Allrun.pre
+
+#-- Run in parallel
+
+# Decompose
+runApplication decomposePar -allRegions -constant
+
+# Set the initial fields
+restore0Dir
+
+runParallel $(getApplication)
+
+# Reconstruct
+runApplication reconstructPar -allRegions
+
+echo
+echo "Use paraFoam -touch-all to create files for paraview post-processing"
+echo
+
+#------------------------------------------------------------------------------
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allrun.pre b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allrun.pre
new file mode 100755
index 0000000000000000000000000000000000000000..89c3e4c9a9d3d9fed4a84f84e3ac2afff414a1c8
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/Allrun.pre
@@ -0,0 +1,32 @@
+#!/bin/sh
+cd ${0%/*} || exit 1 # Run from this directory
+. $WM_PROJECT_DIR/bin/tools/RunFunctions # Tutorial run functions
+
+runApplication blockMesh
+runApplication topoSet
+runApplication splitMeshRegions -cellZones -overwrite
+
+# Remove unwanted region
+rm -rf 0/domain3 constant/domain3 system/domain3
+
+# Remove fluid fields from solid regions (important for post-processing)
+for region in $(foamListRegions solid)
+do
+ rm -f 0/$region/{rho,mut,alphat,epsilon,k,U,p_rgh,qr,G,IDefault}
+ rm -f processor*/0/$region/{rho,mut,alphat,epsilon,k,U,p_rgh,qr,G,IDefault}
+done
+
+# Set the initial fields
+restore0Dir
+
+for region in $(foamListRegions)
+do
+ runApplication -s $region changeDictionary \
+ -region $region -subDict dictionaryReplacement
+done
+
+rm log.topoSet
+
+runApplication topoSet -region air
+
+#------------------------------------------------------------------------------
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/boundaryRadiationProperties b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/boundaryRadiationProperties
new file mode 100644
index 0000000000000000000000000000000000000000..553a318eec7225812077a4aa6534b260726b84a1
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/boundaryRadiationProperties
@@ -0,0 +1,52 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ location "constant";
+ object boundaryRadiationProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+".*"
+{
+ type transparent;
+
+ wallAbsorptionEmissionModel
+ {
+ type multiBandAbsorption;
+ emissivity (1 1);
+ absorptivity (0 0);
+ }
+}
+
+air_to_solid
+{
+ type opaqueDiffusive;
+ wallAbsorptionEmissionModel
+ {
+ type multiBandAbsorption;
+ absorptivity (0.3 0.7);
+ emissivity (0.3 0.7);
+ };
+}
+
+air_to_floor
+{
+ type opaqueDiffusive;
+ wallAbsorptionEmissionModel
+ {
+ type multiBandAbsorption;
+ absorptivity (0.3 0.7);
+ emissivity (0.3 0.7);
+ };
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/radiationProperties b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/radiationProperties
new file mode 100644
index 0000000000000000000000000000000000000000..44a0cac803147506fd3c309de8d55db23816b9a4
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/radiationProperties
@@ -0,0 +1,104 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ location "constant";
+ object radiationProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+radiation on;
+
+radiationModel fvDOM;
+
+fvDOMCoeffs
+{
+ nPhi 3; // azimuthal angles in PI/2 on X-Y.(from Y to X)
+ nTheta 6; // polar angles in PI (from Z to X-Y plane)
+ maxIter 25; // maximum number of iterations
+ tolerance 2e-2; // convergence criteria for radiation iteration
+
+ useSolarLoad false;
+
+ useExternalBeam true;
+
+ // Energy spectrum for the external beam
+ spectralDistribution (2 1);
+}
+
+solarCalculatorCoeffs
+{
+ // (solar calculator)
+ sunDirectionModel sunDirTracking; //sunDirConstant
+
+ // Time interval to update Sun position (sec)
+ sunTrackingUpdateInterval 800;
+
+ //sunDirection (1 0 -1);
+
+ localStandardMeridian 9; // GMT offset (hours)
+ startDay 204; // day of the year
+ startTime 15; // time of the day (hours decimal)
+ longitude 139.74; // longitude (degrees)
+ latitude 35.658; // latitude (degrees)
+
+
+ // Grid orientation
+ gridUp (0 0 1);
+ gridEast (1 0 0);
+
+ // sunLoadConstant-sunLoadFairWeatherConditions-SunLoadTheoreticalMaximum;
+ sunLoadModel sunLoadFairWeatherConditions;//sunLoadConstant;//;
+
+ // Sun load constant model
+ //directSolarRad 500; // [w/m2]
+ //diffuseSolarRad 0; // [w/m2]
+
+ // Fair Weather Conditions Model Constants.
+ // Calculate beta from the Solar calculator or input
+ A 500; // Apparent solar irradiation at air mass m = 0
+ B 0.142; // Atmospheric extinction coefficient
+ //beta 45; // Solar altitude (in degrees) above the horizontal
+
+ // Theoretical maximum model constants
+ Setrn 10;
+ SunPrime 1;
+
+ // Ground reflectivity
+ groundReflectivity 0.2;
+
+ // Solar diffusivity constants
+ C 0.058; // Model constant
+
+}
+
+// Number of flow iterations per radiation iteration
+solverFreq 10;
+
+absorptionEmissionModel multiBandZoneAbsorptionEmission;
+
+multiBandZoneAbsorptionEmissionCoeffs
+{
+ absorptivity (0.01 0.01);
+ emissivity (0.01 0.01);
+
+ zones
+ {
+ absorptivity ("trees" (20 20));
+ emissivity ("trees" (20 20));
+ }
+}
+
+scatterModel none;
+
+sootModel none;
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/thermophysicalProperties b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/thermophysicalProperties
new file mode 100644
index 0000000000000000000000000000000000000000..e9256fed6d53c4335ea2aa1c49ea457d0be1bf53
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/thermophysicalProperties
@@ -0,0 +1,47 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object thermophysicalProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+thermoType
+{
+ type heRhoThermo;
+ mixture pureMixture;
+ transport const;
+ thermo hConst;
+ equationOfState perfectGas;
+ specie specie;
+ energy sensibleEnthalpy;
+}
+
+mixture
+{
+ specie
+ {
+ molWeight 28.9;
+ }
+ thermodynamics
+ {
+ Cp 1000;
+ Hf 0;
+ }
+ transport
+ {
+ mu 1.8e-05;
+ Pr 0.7;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/turbulenceProperties b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/turbulenceProperties
new file mode 100644
index 0000000000000000000000000000000000000000..592b645a94f0be7a0746ab9e1e08d5f40a0dd0a1
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/air/turbulenceProperties
@@ -0,0 +1,26 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object turbulenceProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+simulationType RAS;
+
+RAS
+{
+ RASModel kEpsilon;
+ turbulence on;
+ printCoeffs on;
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/floor/radiationProperties b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/floor/radiationProperties
new file mode 100644
index 0000000000000000000000000000000000000000..3f8b93f484ac368305314a770f87c70c0d1a514c
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/floor/radiationProperties
@@ -0,0 +1,35 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ location "constant";
+ object radiationProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+radiation off;
+
+radiationModel none;//opaqueSolid;
+
+absorptionEmissionModel none;
+
+multiBandAbsorptionEmissionCoeffs
+{
+ absorptivity (0.3 0.7);
+ emissivity (0.3 0.7);
+}
+
+scatterModel none;
+
+sootModel none;
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/floor/thermophysicalProperties b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/floor/thermophysicalProperties
new file mode 100644
index 0000000000000000000000000000000000000000..571eb65398b435c181221ecc938ea05a0b42d445
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/floor/thermophysicalProperties
@@ -0,0 +1,52 @@
+/*--------------------------------*- C++ -*----------------------------------* \
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object thermophysicalProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+thermoType
+{
+ type heSolidThermo;
+ mixture pureMixture;
+ transport constIso;
+ thermo hConst;
+ equationOfState rhoConst;
+ specie specie;
+ energy sensibleEnthalpy;
+}
+
+mixture
+{
+ specie
+ {
+ molWeight 12;
+ }
+
+ transport
+ {
+ kappa 80;
+ }
+
+ thermodynamics
+ {
+ Hf 0;
+ Cp 450;
+ }
+
+ equationOfState
+ {
+ rho 8000;
+ }
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/g b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/g
new file mode 100644
index 0000000000000000000000000000000000000000..ade05696e3b0d00dcd4ef22fab389cb4ed7a108b
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/g
@@ -0,0 +1,20 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class uniformDimensionedVectorField;
+ object g;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions [0 1 -2 0 0 0 0];
+value (0 0 -9.81);
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/regionProperties b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/regionProperties
new file mode 100644
index 0000000000000000000000000000000000000000..b575faa377a482557a8aad03f7175d11861b6526
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/regionProperties
@@ -0,0 +1,24 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ location "constant";
+ object regionProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+regions
+(
+ fluid (air )
+ solid (solid floor)
+);
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/solid/radiationProperties b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/solid/radiationProperties
new file mode 100644
index 0000000000000000000000000000000000000000..320c9cc4893b660ccd43185e1a47ec8fe28f2c88
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/solid/radiationProperties
@@ -0,0 +1,29 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ location "constant";
+ object radiationProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+radiation off;
+
+radiationModel none;
+
+absorptionEmissionModel none;
+
+scatterModel none;
+
+sootModel none;
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/solid/thermophysicalProperties b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/solid/thermophysicalProperties
new file mode 100644
index 0000000000000000000000000000000000000000..c2e84df72eb3972b4ad48e06e0246590392534b3
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/constant/solid/thermophysicalProperties
@@ -0,0 +1,52 @@
+/*--------------------------------*- C++ -*----------------------------------* \
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object thermophysicalProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+thermoType
+{
+ type heSolidThermo;
+ mixture pureMixture;
+ transport constIso;
+ thermo hConst;
+ equationOfState rhoConst;
+ specie specie;
+ energy sensibleEnthalpy;
+}
+
+mixture
+{
+ specie
+ {
+ molWeight 12;
+ }
+
+ transport
+ {
+ kappa 80;
+ }
+
+ thermodynamics
+ {
+ Hf 0;
+ Cp 250;
+ }
+
+ equationOfState
+ {
+ rho 5000;
+ }
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/changeDictionaryDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/changeDictionaryDict
new file mode 100644
index 0000000000000000000000000000000000000000..7ff31a85eb0d4f429f9a972cb62c7b6444b7f4b5
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/changeDictionaryDict
@@ -0,0 +1,147 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object changeDictionaryDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dictionaryReplacement
+{
+ U
+ {
+ boundaryField
+ {
+ ".*"
+ {
+ type pressureInletOutletVelocity;
+ value uniform (0 0 0);
+ phi phi;
+ }
+
+ region0_to_floor_floor_zone
+ {
+ type fixedValue;
+ value uniform (0 0 0);
+ }
+ "air.*"
+ {
+ type fixedValue;
+ value uniform (0 0 0);
+ }
+ }
+ }
+
+ T
+ {
+ internalField uniform 300;
+ boundaryField
+ {
+ ".*"
+ {
+ type inletOutlet;
+ value uniform 300;
+ inletValue uniform 300;
+ }
+
+ "air.*"
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ Tnbr T;
+ kappaMethod fluidThermo;
+ qrNbr none;
+ qr qr;
+ kappa none;
+ thermalInertia true;
+ value uniform 300;
+ }
+ }
+ }
+
+ epsilon
+ {
+ internalField uniform 0.01;
+ boundaryField
+ {
+ ".*"
+ {
+ type inletOutlet;
+ inletValue uniform 0.01;
+ value uniform 0.01;
+ }
+
+ "air.*"
+ {
+ type epsilonWallFunction;
+ value uniform 0.01;
+ }
+
+ }
+ }
+
+ k
+ {
+ internalField uniform 0.1;
+ boundaryField
+ {
+ ".*"
+ {
+ type inletOutlet;
+ inletValue uniform 0.1;
+ value uniform 0.1;
+ }
+
+ "air.*"
+ {
+ type kqRWallFunction;
+ value uniform 0.1;
+ }
+
+ }
+ }
+
+ p_rgh
+ {
+ internalField uniform 1e5;
+ boundaryField
+ {
+ ".*"
+ {
+ type totalPressure;
+ p0 $internalField;
+ }
+
+ "air.*"
+ {
+ type fixedFluxPressure;
+ value uniform 1e5;
+ }
+
+ }
+ }
+
+ p
+ {
+ internalField uniform 1e5;
+ boundaryField
+ {
+ ".*"
+ {
+ type calculated;
+ value uniform 1e5;
+ }
+ }
+ }
+
+
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/decomposeParDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/decomposeParDict
new file mode 120000
index 0000000000000000000000000000000000000000..46638e60f61f453fde97c51772ad6111792db0f6
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/decomposeParDict
@@ -0,0 +1 @@
+../decomposeParDict
\ No newline at end of file
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/fvSchemes b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/fvSchemes
new file mode 100644
index 0000000000000000000000000000000000000000..4fb4e0744a32ea9d41a50e54b22cc50fd86418bb
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/fvSchemes
@@ -0,0 +1,59 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object fvSchemes;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ddtSchemes
+{
+ default Euler;
+}
+
+gradSchemes
+{
+ default Gauss linear;
+}
+
+divSchemes
+{
+ default none;
+
+ div(phi,U) Gauss upwind;
+ div(phi,K) Gauss upwind;
+ div(phi,h) Gauss upwind;
+ div(phi,k) Gauss upwind;
+ div(phi,K) Gauss upwind;
+ div(phi,epsilon) Gauss upwind;
+ div(phi,R) Gauss upwind;
+ div(R) Gauss linear;
+ div(Ji,Ii_h) Gauss linearUpwind grad(U);
+ div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
+}
+
+laplacianSchemes
+{
+ default Gauss linear corrected;
+}
+
+interpolationSchemes
+{
+ default linear;
+}
+
+snGradSchemes
+{
+ default corrected;
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/fvSolution b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/fvSolution
new file mode 100644
index 0000000000000000000000000000000000000000..36da00985b7b1b9acb898062a4239f139e0c383e
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/fvSolution
@@ -0,0 +1,83 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object fvSolution;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+solvers
+{
+ "rho.*"
+ {
+ solver PCG;
+ preconditioner DIC;
+ tolerance 0;
+ relTol 0;
+ }
+
+ p_rgh
+ {
+ solver PCG;
+ preconditioner DIC;
+ tolerance 1e-7;
+ relTol 0.05;
+ }
+
+ p_rghFinal
+ {
+ $p_rgh;
+ relTol 0;
+ }
+
+ "(U|h|e|k|epsilon|R|)"
+ {
+ solver PBiCGStab;
+ preconditioner DILU;
+ tolerance 1e-6;
+ relTol 0.1;
+ }
+
+ "(U|h|e|k|epsilon|R)Final"
+ {
+ $U;
+ relTol 0;
+ }
+
+ Ii
+ {
+ solver GAMG;
+ tolerance 1e-4;
+ relTol 0.1;
+ smoother symGaussSeidel;
+ maxIter 10;
+ nPostSweeps 1;
+ }
+}
+
+PIMPLE
+{
+ momentumPredictor no;
+ nOuterCorrectors 0;
+ nCorrectors 2;
+ nNonOrthogonalCorrectors 0;
+}
+
+relaxationFactors
+{
+ equations
+ {
+ ".*" 1;
+ }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/topoSetDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/topoSetDict
new file mode 100644
index 0000000000000000000000000000000000000000..627885384a441dfa36a6a118768000e5b8da5f18
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/air/topoSetDict
@@ -0,0 +1,39 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object topoSetDict;
+}
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+actions
+(
+
+ // solid
+ {
+ name trees;
+ type cellSet;
+ action new;
+ source boxToCell;
+ box (5 15.5 0)(10 24.5 2);
+ }
+
+ {
+ name trees;
+ type cellZoneSet;
+ action new;
+ source setToCellZone;
+ set trees; // cellSet
+ }
+);
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/blockMeshDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/blockMeshDict
new file mode 100644
index 0000000000000000000000000000000000000000..a3396c56866cbeb83f2006c56ffcf4bcb0de5638
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/blockMeshDict
@@ -0,0 +1,96 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object blockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+scale 1;
+
+vertices
+(
+ ( 0 0 -1)
+ ( 40 0 -1)
+ ( 40 40 -1)
+ ( 0 40 -1)
+ ( 0 0 60)
+ ( 40 0 60)
+ ( 40 40 60)
+ ( 0 40 60)
+);
+
+blocks
+(
+ hex (0 1 2 3 4 5 6 7) (30 30 45) simpleGrading (1 1 1)
+);
+
+edges
+(
+);
+
+boundary
+(
+ maxY
+ {
+ type patch;
+ faces
+ (
+ (3 7 6 2)
+ );
+ }
+ minX
+ {
+ type patch;
+ faces
+ (
+ (0 4 7 3)
+ );
+ }
+ maxX
+ {
+ type patch;
+ faces
+ (
+ (2 6 5 1)
+ );
+ }
+ minY
+ {
+ type patch;
+ faces
+ (
+ (1 5 4 0)
+ );
+ }
+ minZ
+ {
+ type wall;
+ faces
+ (
+ (0 3 2 1)
+ );
+ }
+ maxZ
+ {
+ type patch;
+ faces
+ (
+ (4 5 6 7)
+ );
+ }
+);
+
+mergePatchPairs
+(
+);
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/controlDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/controlDict
new file mode 100644
index 0000000000000000000000000000000000000000..ad5c7a63cd83df9be15a283119fe90ad58e213a0
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/controlDict
@@ -0,0 +1,56 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ location "system";
+ object controlDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+application chtMultiRegionFoam;
+
+startFrom startTime;
+
+startTime 0;
+
+stopAt endTime;
+
+endTime 12000;
+
+deltaT 1;
+
+writeControl adjustableRunTime;
+
+writeInterval 100;
+
+purgeWrite 0;
+
+writeFormat ascii;
+
+writePrecision 7;
+
+writeCompression off;
+
+timeFormat general;
+
+timePrecision 6;
+
+runTimeModifiable true;
+
+adjustTimeStep yes;
+
+maxCo 15;
+
+maxDeltaT 10;
+
+maxDi 0.25;
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/decomposeParDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/decomposeParDict
new file mode 100644
index 0000000000000000000000000000000000000000..deadbea228de76c2f69ea85241b54b1cefe337e7
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/decomposeParDict
@@ -0,0 +1,30 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains 4;
+
+method scotch;
+
+coeffs
+{
+ n (2 2 1);
+}
+
+scotchCoeffs
+{
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/extrudeToRegionMeshDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/extrudeToRegionMeshDict
new file mode 100644
index 0000000000000000000000000000000000000000..3f6c75f184a1a0c9b5efa81b059a7a57f3590bfe
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/extrudeToRegionMeshDict
@@ -0,0 +1,40 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object extrudeToRegionMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+region floor;
+
+faceZones (floor_zone);
+
+oneD false;
+
+sampleMode nearestPatchFace;
+
+oneDPolyPatchType empty; //wedge
+
+extrudeModel linearNormal;
+
+nLayers 5;
+
+expansionRatio 1;
+
+adaptMesh true; // mapped for both
+
+linearNormalCoeffs
+{
+ thickness 1;
+}
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/changeDictionaryDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/changeDictionaryDict
new file mode 100644
index 0000000000000000000000000000000000000000..7e36227608ded51d0f67bfaa5e4e4c58a8344b85
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/changeDictionaryDict
@@ -0,0 +1,84 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object changeDictionaryDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dictionaryReplacement
+{
+ boundary
+ {
+ floor_to_domain3
+ {
+ type patch;
+ }
+ }
+ T
+ {
+ internalField uniform 300;
+
+ boundaryField
+ {
+ ".*"
+ {
+ type zeroGradient;
+ value uniform 300;
+ }
+
+ floor_to_solid
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ Tnbr T;
+ kappaMethod solidThermo;
+ qrNbr none;
+ qr none;
+ kappa none;
+ thermalInertia true;
+ value uniform 300;
+ }
+
+ floor_to_air
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ Tnbr T;
+ kappaMethod solidThermo;
+ qrNbr qr;
+ qr none;
+ kappa none;
+ thermalInertia true;
+ value uniform 300;
+ }
+
+ floor_to_domain3
+ {
+ type zeroGradient;
+ value uniform 300;
+ }
+
+ minZ
+ {
+ type externalWallHeatFluxTemperature;
+ mode coefficient;
+ Ta uniform 313.0;
+ h uniform 10e5;
+ kappaMethod solidThermo;
+ kappa none;
+ thicknessLayers (1 2);
+ kappaLayers (100 200);
+ value uniform 300.0;
+ }
+ }
+ }
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/decomposeParDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/decomposeParDict
new file mode 120000
index 0000000000000000000000000000000000000000..46638e60f61f453fde97c51772ad6111792db0f6
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/decomposeParDict
@@ -0,0 +1 @@
+../decomposeParDict
\ No newline at end of file
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/fvSchemes b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/fvSchemes
new file mode 100644
index 0000000000000000000000000000000000000000..f2bd951211a1ccd385fa092a345c27aca7a4bde1
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/fvSchemes
@@ -0,0 +1,49 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object fvSchemes;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ddtSchemes
+{
+ default Euler;
+}
+
+gradSchemes
+{
+ default Gauss linear;
+}
+
+divSchemes
+{
+ default none;
+}
+
+laplacianSchemes
+{
+ default none;
+ laplacian(alpha,h) Gauss linear corrected;
+}
+
+interpolationSchemes
+{
+ default linear;
+}
+
+snGradSchemes
+{
+ default corrected;
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/fvSolution b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/fvSolution
new file mode 100644
index 0000000000000000000000000000000000000000..69e260222f69223d466956a41b95ea969f120210
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/floor/fvSolution
@@ -0,0 +1,44 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object fvSolution;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+solvers
+{
+ "h.*"
+ {
+ solver PCG;
+ preconditioner DIC;
+ tolerance 1e-06;
+ relTol 0;
+ }
+}
+
+PIMPLE
+{
+ nNonOrthogonalCorrectors 0;
+}
+
+relaxationFactors
+{
+ fields
+ {
+ }
+ equations
+ {
+ h 1;
+ }
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/fvSchemes b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/fvSchemes
new file mode 100644
index 0000000000000000000000000000000000000000..f71ea8fad7aaa7b35b7228a797a4f63942f90b6d
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/fvSchemes
@@ -0,0 +1,42 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object fvSchemes;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ddtSchemes
+{
+}
+
+gradSchemes
+{
+}
+
+divSchemes
+{
+}
+
+laplacianSchemes
+{
+}
+
+interpolationSchemes
+{
+}
+
+snGradSchemes
+{
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/fvSolution b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/fvSolution
new file mode 100644
index 0000000000000000000000000000000000000000..26c25b2fb5e5a5eb258559c29a28a8dc6cc39da9
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/fvSolution
@@ -0,0 +1,21 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object fvSolution;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+PIMPLE
+{
+
+}
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/changeDictionaryDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/changeDictionaryDict
new file mode 100644
index 0000000000000000000000000000000000000000..63fe91bbf50787568e0813ff607875f94e02f9e5
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/changeDictionaryDict
@@ -0,0 +1,65 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object changeDictionaryDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dictionaryReplacement
+{
+ boundary
+ {
+ solid_to_domain3
+ {
+ type patch;
+ }
+ }
+ T
+ {
+ internalField uniform 300;
+
+ boundaryField
+ {
+ solid_to_air
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ Tnbr T;
+ kappaMethod solidThermo;
+ qrNbr qr;
+ qr none;
+ kappa none;
+ thermalInertia true;
+ value uniform 300;
+ }
+
+ solid_to_floor
+ {
+ type compressible::turbulentTemperatureRadCoupledMixed;
+ Tnbr T;
+ kappaMethod solidThermo;
+ qrNbr none;
+ qr none;
+ kappa none;
+ thermalInertia true;
+ value uniform 300;
+ }
+
+ solid_to_domain3
+ {
+ type fixedValue;
+ value uniform 300.0;
+ }
+ }
+ }
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/decomposeParDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/decomposeParDict
new file mode 120000
index 0000000000000000000000000000000000000000..46638e60f61f453fde97c51772ad6111792db0f6
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/decomposeParDict
@@ -0,0 +1 @@
+../decomposeParDict
\ No newline at end of file
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/fvSchemes b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/fvSchemes
new file mode 100644
index 0000000000000000000000000000000000000000..aa4694dc39011a09087961cddecbe7cd052bbdd8
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/fvSchemes
@@ -0,0 +1,49 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object fvSchemes;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ddtSchemes
+{
+ default Euler;
+}
+
+gradSchemes
+{
+ default Gauss linear;
+}
+
+divSchemes
+{
+ default none;
+}
+
+laplacianSchemes
+{
+ default none;
+ laplacian(alpha,h) Gauss linear corrected;
+}
+
+interpolationSchemes
+{
+ default linear;
+}
+
+snGradSchemes
+{
+ default corrected;
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/fvSolution b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/fvSolution
new file mode 100644
index 0000000000000000000000000000000000000000..e37f2636ccbc4ee3aa76cc2684b1fa2ef144a9ba
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/solid/fvSolution
@@ -0,0 +1,44 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object fvSolution;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+solvers
+{
+ "h.*"
+ {
+ solver PCG;
+ preconditioner DIC;
+ tolerance 1e-06;
+ relTol 0.;
+ }
+}
+
+PIMPLE
+{
+ nNonOrthogonalCorrectors 0;
+}
+
+relaxationFactors
+{
+ fields
+ {
+ }
+ equations
+ {
+ h 1;
+ }
+}
+
+// ************************************************************************* //
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/topoSetDict b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/topoSetDict
new file mode 100644
index 0000000000000000000000000000000000000000..a3f304babe49faae517b92592b5f4d2cc3b3fa4b
--- /dev/null
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/solarBeamWithTrees/system/topoSetDict
@@ -0,0 +1,104 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| ========= | |
+| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
+| \\ / O peration | Version: v1906 |
+| \\ / A nd | Web: www.OpenFOAM.com |
+| \\/ M anipulation | |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+ version 2.0;
+ format ascii;
+ class dictionary;
+ object topoSetDict;
+}
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+actions
+(
+
+ // solid
+ {
+ name solid;
+ type cellSet;
+ action new;
+ source boxToCell;
+ box (15.5 15.5 0)(24.5 24.5 9);
+ }
+
+ // floor
+ {
+ name floor;
+ type cellSet;
+ action new;
+ source boxToCell;
+ box (0 0 -2)(41 41 0);
+ }
+
+ {
+ name floor;
+ type cellZoneSet;
+ action new;
+ source setToCellZone;
+ set floor;
+ }
+
+ //air
+ {
+ name solid;
+ type cellSet;
+ action invert;
+ }
+
+ {
+ name solid;
+ type cellSet;
+ action subtract;
+ source cellToCell;
+ set floor;
+ }
+
+ {
+ name air;
+ type cellZoneSet;
+ action new;
+ source setToCellZone;
+ set solid; // cellSet
+ }
+
+ {
+ name cavity;
+ type cellSet;
+ action new;
+ source boxToCell;
+ box (17 17 0)(23 23 7.5);
+ }
+
+ //- Define again solid
+ {
+ name solidCells;
+ type cellSet;
+ action new;
+ source boxToCell;
+ box (15.5 15.5 0)(24.5 24.5 9);
+ }
+
+ {
+ name solidCells;
+ type cellSet;
+ action subtract;
+ source cellToCell;
+ set cavity;
+ }
+
+ {
+ name solid;
+ type cellZoneSet;
+ action new;
+ source setToCellZone;
+ set solidCells; // cellSet
+ }
+);
+
+// ************************************************************************* //