Corrected case for the new wall-function treatment.

tutorials/incompressible/simpleFoam/airFoil2D/0/nut

@@ -34,7 +34,7 @@ boundaryField
 
     wall
     {
-        type            nutWallFunction;
+        type            nutSpalartAllmarasWallFunction;
         value           uniform 0;
     }
 

tutorials/incompressible/simpleFoam/airFoil2D/system/fvSolution

@@ -59,6 +59,7 @@ SIMPLE
 
 relaxationFactors
 {
+    default         0;
     p               0.3;
     U               0.7;
     nuTilda         0.7;