Solution for solids4foam#150 point 3.

tutorials/fluidSolidInteraction/3dTube/Allclean

@@ -20,6 +20,7 @@ else
 fi
 
 rm -rf case.foam postProcessing residuals
+rm -rf radialDisplacement.pdf fsiConvergence.pdf axialDisplacement.pdf
 
 # Convert case version to FOAM EXTEND
 solids4Foam::convertCaseFormatFoamExtend .
@@ -37,6 +38,6 @@ fi
 
 # Link files back to default with pimpleFluid
 for file in $(find ./0 ./constant ./system -name '*.pimpleFluid')
-do 
+do
     ln -vnsf ${file##*/} ${file%.*}
 done

tutorials/fluidSolidInteraction/3dTube/Allrun

@@ -56,3 +56,13 @@ solids4Foam::runApplication -s fluid blockMesh -region fluid
 
 # Run solver
 solids4Foam::runApplication solids4Foam
+
+# Create plots
+if command -v gnuplot &> /dev/null
+then
+    echo "Generating plots"
+    gnuplot -p displacement.gnuplot &> /dev/null
+    gnuplot -p fsiConvergence.gnuplot &> /dev/null
+else
+    echo "Please install gnuplot if you would like to generate the plots"
+fi

tutorials/fluidSolidInteraction/3dTube/displacement.gnuplot

@@ -0,0 +1,27 @@
+set terminal pdfcairo enhanced color solid
+
+# Axial displacement
+
+set output "axialDisplacement.pdf"
+set title "3dTube: Axial Displacement at Point A"
+set xlabel "Time, t [s]"
+set ylabel "Axial Displacement [mm]"
+set grid
+set key top right
+
+set yrange [-0.1:0.1]
+
+plot \
+    "postProcessing/0/solidPointDisplacement_displacement.dat" u 1:(1000*$4)\
+    w l lc "red" lw 0.5 lt 1 t "Axial displacement"
+
+# Radial displacement  
+
+set output "radialDisplacement.pdf"
+set title "3dTube: Radial Displacement at Point A"
+set ylabel "Radial Displacement [mm]"
+set yrange [-0.1:0.15]
+
+plot \
+    "postProcessing/0/solidPointDisplacement_displacement.dat" u 1:(1000*$3)\
+    w l lc "red" lw 0.5 lt 1 t "Radial displacement"

tutorials/fluidSolidInteraction/3dTube/fsiConvergence.gnuplot

@@ -0,0 +1,14 @@
+set terminal pdfcairo enhanced color solid
+
+set output "fsiConvergence.pdf"
+
+set title "3dTube: Number of FSI iterations"
+set xlabel "Time, t [s]"
+set ylabel "Number of FSI iterations"
+set grid
+set key top right
+
+set yrange [0:80]
+
+plot \
+    "postProcessing/0/fsiConvergenceData.dat" u 1:2 w lp ps 0.3 pt 5 lc "red" lw 0.5 lt 1 t "Number of iterations"

tutorials/fluidSolidInteraction/3dTube/system/controlDict

@@ -76,6 +76,12 @@ functions
         CofR                (0.5 0.1 0);
         region              fluid;
     }
+    fsiConvData
+    {
+        type fsiConvergenceData;        
+        region fluid;
+    }
+
 }
 
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