[petsc-users] examples of DMPlex*FVM methods

[Jed Brown]

Matthew Knepley <knepley at gmail.com> writes:
> As a side note, I think using FV to solve an elliptic equation should be a
> felony. Continuous FEM is excellent for this, whereas FV needs
> a variety of twisted hacks and is always worse in terms of computation and
> accuracy. 

Unless you need exact (no discretization error) local conservation,
e.g., for a projection in a staggered grid incompressible flow problem,
in which case you can use either FV or mixed FEM (algebraically
equivalent to FV in some cases).
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