[CIG-MC] SUPG method in CitcomS

Magali Billen mibillen at ucdavis.edu
Fri Apr 6 17:16:48 PDT 2012

Thanks for all the feedback. The current plan is to finish this project with citcomS for some 2D models while learning ASPECT (we are on tutorial 6) and then switch, however it's good to learn about the different methods and their limitations.


Dept of Geology, UC Davis
*sent from my i-phone

On Apr 6, 2012, at 3:57 PM, Wolfgang Bangerth <bangerth at math.tamu.edu> wrote:

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