Dear Krishna,
We have recently added one such function, namely
GridTools::compute_aspect_ratio_of_cells(),
https://dealii.org/developer/doxygen/deal.II/namespaceGridTools.html#a2a9d8801d952ea8afa9ec1573229a329
Best,
Martin
On 15.01.20 18:26, Krishnakumar Gopalakrishnan wrote:
In the results/extension section of Step-6 as well in Step-49, there
is a great deal of discussion about obtaining good meshes are for a
problem, with the caveat that this is a highly specialized topic.
Step-49 is full of warnings about things that can go wrong when
applying certain transformations, and it seems to implant doubts in my
mind that my meshes are never going to be correct :)
Given this, in the spirit of the Kelly Indicator for solution errors
in a cell, is there a similar single-metric for the quality/goodness
of each cell in a mesh? Maybe there is something based on the smallest
internal angle (to prevent slivers, for Jacobian of the mapping to be
invertible, to prevent inverted cells etc).
After all, error estimation is a complicated topic. nevertheless the
Kelly Indicator seems to do a reasonable job for quite a few
equations. If currently not implemented in Deal.II, is there any
journal article that discusses research in this direction?
Krishna
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