[aspect-devel] VoF Interface Plugin

Timo Heister timo.heister at gmail.com
Thu Aug 6 15:23:18 PDT 2015

Hey Jonathan,

Option 1:
Add an additional DGP(0) field like you describe. This could either be
a "compositional field" (but we would need to add the option to change
the FE and disable solving for it), or an independent variable (see
free surface for an example).
Option 2:
Track the information yourself in something like a map from
cell_iterator to double. For SolutionTransfer/Serialization you would
then need to add a signal to transfer your data.

Both things are not possible in a clean way at the moment, sadly. What
should happen with the values when a cell gets refined or coarsened?
If you need to control this, you need to go with option 2, otherwise
option 1 sounds easier.

On Thu, Aug 6, 2015 at 12:39 PM, Jonathan Robey <jmrobey at ucdavis.edu> wrote:
> I am working with Professor Puckett on developing a VoF Interface
> tracking plugin for ASPECT, which inherently requires maintaining state
> variables consisting of a single double per cell. I am not certain what
> the best way to obtain this would be. My current impression is that in
> order to make use of the built in communication functions in deal.ii,
> the best implementation would be to set up an additional dof handler
> linked to the triangulation using a finite element which is constant
> over the cell. Is there another method that I am overlooking that would
> be more suitable?
> Thank you,
> Jonathan Robey
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