corrected numbering

tutorials/channelOodles/channel395/constant/postChannelDict

@@ -12,11 +12,17 @@ FoamFile
     class       dictionary;
     object      postChannelDict;
 }
+
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-Nx    40;
-Ny    (50);
-Nz    30;
+Nx 40; 
+Ny 
+( 
+ 25 
+ 25 
+); 
+Nz 30; 
+
 symmetric true;
 
 // ************************************************************************* //