1)Divided the residual term by pressure so that it is now consistent with the corresponding term for the Jacobian; 2) Set scaling to be the diameter of the smallest cell of the control volume; 3)Corrected the comment for the material model
1)Divided the residual term by pressure so that it is now consistent with the corresponding term for the Jacobian; 2) Set scaling to be the diameter of the smallest cell of the control volume; 3)Corrected the comment for the material model

git-svn-id: 53ca99f9fc544348cf6f8fe95af353398d7b6651@1013 8991a6ac-f11c-0410-9488-e9edc039dec7

luca-heltai/ans-ifem,luca-heltai/ans-ifem