Dear DuMuX Community,
With my colleagues, we would like to know how Dumux treats the
computation of the convective flux at the interface of two heterogeneous
media for the implicit scheme.
It seems that for the absolute permeability, an harmonic mean is used
while for the mobility, a weighted upwinding is used (with by default
mobilityUpwindWeight_=1 in
dumux/imlicit/common/implicitdarcyfluxvariables.hh).
We wonder if an other specific treatment is performed since upwinding
can produce non-physical solutions.
Thanks in advance for precisions.
Best regards
Etienne
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