[CIG-MC] SUPG method in CitcomS

[Wolfgang Bangerth]

> I think you're spot on. Advection dominated problems suffer from
> those oscillations with the default method, and filtering or higher
> spatio-temporal  resolution are workarounds. For the most part, the
> oscillations are harmless if detected, and typically don't arise for
> convection problems (as opposed to the start a slab problems we all
> like). This iffiness is why we put "new energy solver" with semi
> Lagrangian as a guess on the wish list for CIG.

Or you check out the nonlinear artificial diffusion scheme in ASPECT :-)

Cheers
  W.

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Wolfgang Bangerth               email:            bangerth at math.tamu.edu
                                 www: http://www.math.tamu.edu/~bangerth/