TUT: use general 'scale' instead of 'convertToMeters' in blockMeshDict

- although this has been supported for many years, the tutorials
  continued to use "convertToMeters" entry, which is specific to blockMesh.
  The "scale" is more consistent with other dictionaries.

ENH:
- ignore "scale 0;" (treat as no scaling) for blockMeshDict,
  consistent with use elsewhere.

tutorials/multiphase/interFoam/LES/nozzleFlow2D/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1e-06;
+scale   1e-6;
 
 vertices
 (

tutorials/multiphase/interFoam/RAS/DTCHull/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (

tutorials/multiphase/interFoam/RAS/angledDuct/system/blockMeshDict.m4

@@ -59,7 +59,7 @@ define(xoutlet,calc(xporo + Cos*lenoutlet)) dnl>
 define(youtlet,calc(yporo + Sin*lenoutlet)) dnl>
 dnl>
 
-convertToMeters 0.001;
+scale   0.001;
 
 vertices
 (

tutorials/multiphase/interFoam/RAS/damBreak/damBreak/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 0.146;
+scale   0.146;
 
 vertices
 (

tutorials/multiphase/interFoam/RAS/damBreakPorousBaffle/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 0.146;
+scale   0.146;
 
 vertices
 (

tutorials/multiphase/interFoam/RAS/waterChannel/system/blockMeshDict

@@ -15,7 +15,7 @@ FoamFile
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (

tutorials/multiphase/interFoam/RAS/weirOverflow/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/capillaryRise/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1e-3;
+scale   0.001;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/damBreak/damBreak/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 0.146;
+scale   0.146;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/mixerVessel2D/system/blockMeshDict.m4

@@ -28,7 +28,7 @@ define(backQuad, ($1b $4b $3b $2b))
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 0.1;
+scale   0.1;
 
 // Hub radius
 define(r, 0.2)

tutorials/multiphase/interFoam/laminar/vofToLagrangian/eulerianInjection/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 0.05;
+scale   0.05;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianDistributionInjection/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 3;
+scale   3;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianParticleInjection/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 3;
+scale   3;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/waveExampleCnoidal/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/waveExampleSolitary/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/waveExampleSolitaryGrimshaw/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/waveExampleSolitaryMcCowan/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/waveExampleStokesI/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/waveExampleStokesII/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (

tutorials/multiphase/interFoam/laminar/waveExampleStokesV/system/blockMeshDict

@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-convertToMeters 1;
+scale   1;
 
 vertices
 (