Possible bug in fvMatrix residual member
supposing that the fvMatrix.residual() member give us the residual of the matrix in the form R = Ax - B, I've noticed a strange behavior.
In some way .residual() member applied to fvMatrix<vector> modifies the extra diagonal elements of the matrix:
the operator .H() returns different results for fvMatrix<vector> before and after calling the fvMatrix.residual() member.
Attached you find a simple code to reproduce the "phenomena" , you can run it under tutorial directory of the scalarTransportFoam solver
Tested on 1.7.x version yesterday update
Thanks in advance
I was wondering why after two months nobody of the developers reply to this post..
Anyway for the guys that need residual() functions works properly I figure out the error:
Change in file fvMatrixSolve.C the line 192 with:
tmp<Field<Type> > tres(new Field<Type>(source_));
in this way there is no more modification of the source term (that was the problem).
you have to patch only the 1.7 official release
If you think there's a bug then post it here (as mentioned in the sticky thread in this forum):
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