TUT: add parallel version for various squareBend cases

- adjust commented-out evaluation to avoid warnings.

  With code like this
  ```
  #if 0
  nxin    #eval{ round($nxin / 5) };
  #endif
  ```

  The handling of the "#if 0 / #endif" clause uses the plain ISstream
  parser to tokenize. This means that the "round(" is parsed as a word
  with a mismatched closing ')', whereas the "#eval" parser will slurp
  everything in until the closing brace and send it off as a string
  to the expression parser.

tutorials/incompressible/pimpleFoam/LES/periodicHill/transient/Allclean

-#!/bin/sh
-cd "${0%/*}" || exit                                # Run from this directory
-. ${WM_PROJECT_DIR:?}/bin/tools/CleanFunctions      # Tutorial clean functions
-#------------------------------------------------------------------------------
-
-cleanCase
-
-#------------------------------------------------------------------------------

tutorials/incompressible/simpleFoam/squareBend/Allrun

@@ -3,17 +3,7 @@ cd "${0%/*}" || exit                                # Run from this directory
 . ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions        # Tutorial run functions
 #------------------------------------------------------------------------------
 
-mkdir -p constant/triSurface
-
-cp -f \
-    "$FOAM_TUTORIALS"/resources/geometry/angledPlane.obj.gz \
-    constant/triSurface
-
-restore0Dir
-
-runApplication blockMesh
-
-runApplication topoSet
+./Allrun.pre
 
 runApplication $(getApplication)
 

tutorials/incompressible/simpleFoam/squareBend/Allrun-parallel

+#!/bin/sh
+cd "${0%/*}" || exit                                # Run from this directory
+. ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions        # Tutorial run functions
+#------------------------------------------------------------------------------
+
+./Allrun.pre
+
+runApplication decomposePar
+
+runParallel $(getApplication)
+
+#------------------------------------------------------------------------------

tutorials/incompressible/simpleFoam/squareBend/Allrun.pre

+#!/bin/sh
+cd "${0%/*}" || exit                                # Run from this directory
+. ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions        # Tutorial run functions
+#------------------------------------------------------------------------------
+
+mkdir -p constant/triSurface
+
+cp -f \
+    "$FOAM_TUTORIALS"/resources/geometry/angledPlane.obj.gz \
+    constant/triSurface
+
+restore0Dir
+
+runApplication blockMesh
+
+runApplication topoSet
+
+#------------------------------------------------------------------------------

tutorials/incompressible/simpleFoam/squareBend/system/blockMeshDict

 /*--------------------------------*- C++ -*----------------------------------*\
 | =========                 |                                                 |
 | \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  v2012                                 |
+|  \\    /   O peration     | Version:  v2106                                 |
 |   \\  /    A nd           | Website:  www.openfoam.com                      |
 |    \\/     M anipulation  |                                                 |
 \*---------------------------------------------------------------------------*/
@@ -34,9 +34,9 @@ xin     #eval{ $xin / 5 };
 xout    #eval{ $xout / 5 };
 zmax    #eval{ $zmax / 5 };
 
-nxin    #eval{ round($nxin / 5) };
-nxout   #eval{ round($nxout / 5) };
-nz      #eval{ round($nz / 5) };
+nxin    #eval{ round ($nxin / 5) };
+nxout   #eval{ round ($nxout / 5) };
+nz      #eval{ round ($nz / 5) };
 #endif
 
 zmin    #eval{ -$zmax };