Thank you Daniel.
I was using penalties before taking this route, because I had artifacts at
the boundary faces present at a corner between a Dirichlet and a Neuman BC
edge. A problem I didn't have with CG. My first intuition was to apply BCs
strongly to fix this, but I don't think it will
Abbas,
Yes, FE_DGQ only defines dofs in the interior of cells. Thus, trying to
interpolate the boundary has no effect. You would normally use penalty
terms to prescribe boundary values for DG methods.
Best,
Daniel
On Wed, Jan 4, 2023 at 6:04 PM Abbas wrote:
> Hello,
>
> The
Hello,
The VectorTools::interpolate_boundary_values function works for
interpolating fe_Q functions but not fe_DGQ .
Was this meant to be the case?
I attached a minimal code that illustrates this.
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I called cmake as follows
$ cmake -DDEAL_II_WITH_HDF5=OFF .
and get the additional lines
//No help, variable specified on the command line.
DEAL_II_WITH_HDF5:UNINITIALIZED=OFF
in my CMakeCache.txt file.
However, after
$ make
the error message is unchanged.
Best
Simon
Am Di., 3. Jan. 2023 um
