Hi Konrad,
It's OK. I will follow your research.
Thanks again anyway.
Cheers,
Ronghong
On Wed, Nov 21, 2018 at 1:53 AM Konrad wrote:
> Hi Ronghong,
>
> I have a version of the MsFEM for systems but this project is not
> published yet so I hesitate to share code at this stage (also the code is
Hi Ronghong,
I have a version of the MsFEM for systems but this project is not published
yet so I hesitate to share code at this stage (also the code is not very
clean yet). I will be happy though to guide you with the code design and
even with some helpful code snippets. If you are interested
Dear Konrad,
Thanks for your reply. Now I just want to solve two separate scales, which
is just a start.
I read the book "Multiscale Finite Element Methods. Theory and Applications
by Thomas Hou" written by Yalchin Efendiev and Thomas Y. Hou.
Maybe you have read it.
I know this multiscale finite
Dear Ronghong Fan,
Yes, I implemented several versions. The question I asked above got
resolved as explained above. If you have a specific question feel free to
ask, I will help if I can. Keep in mind that Multiscale FEMs are not
generic, only work in certain (scaling) scenarios and do not
Dear Konrad,
Do you have some progress about Multiscale Finite Element Method with
dealii?
I am very interested in mfem too and want to use dealii to implement.
On Thursday, August 30, 2018 at 7:27:21 PM UTC+8, Konrad wrote:
>
> On Wednesday, August 29, 2018 at 5:25:29 PM UTC+2, Wolfgang
On Wednesday, August 29, 2018 at 5:25:29 PM UTC+2, Wolfgang Bangerth wrote:
>
>
> I think that's actually an important point you are making here, maybe
> inadvertently: You have as many *meshes* as there are coarse cells.
>
> Now, just refining the global mesh a number of more times gives you
>
Many thanks, Wolfgang. Yes, I need to solve for the basis in each coarse
cell separately, i.e., I have as many local fine meshes as coarse cells.
I think that's actually an important point you are making here, maybe
inadvertently: You have as many *meshes* as there are coarse cells.
Now,
On Wednesday, August 29, 2018 at 3:51:35 PM UTC+2, Jean-Paul Pelteret wrote:
>
> Hi Kendra,
>
> > Thank you, Jean-Paul, for the hint. Unfortunately this is not really
> what I am looking for. I found a solution (that I don't like) by iterating
> through two meshes on different levels
Hi Kendra,
> Thank you, Jean-Paul, for the hint. Unfortunately this is not really what I
> am looking for. I found a solution (that I don't like) by iterating through
> two meshes on different levels simultaneously. Once I find a good solution I
> will post it here and link to the code.
I
On Wednesday, August 29, 2018 at 11:50:57 AM UTC+2, Jean-Paul Pelteret
wrote:
>
> Hi Konrad,
>
> Do you think it would be possible to (ab)use the multigrid classes for
> that? As far as I understand there are dofhandlers on each level of the
> mesh. Can I get dofhandlers for all active subcells
Hi Konrad,
> Do you think it would be possible to (ab)use the multigrid classes for that?
> As far as I understand there are dofhandlers on each level of the mesh. Can I
> get dofhandlers for all active subcells of say coarse cell number n in level
> 5?
The DoFHandler::begin_active()
On Wednesday, August 29, 2018 at 4:23:32 AM UTC+2, Wolfgang Bangerth wrote:
>
> Since you really only want to interpolate between two meshes, I would just
> have two DoFHandlers and two Triangulations and use the class InterGridMap
> to
> translate between the two of them.
>
> Or do you want
On 08/28/2018 04:47 AM, Konrad wrote:
Is it possible to have system matrices, dofs and solution vectors etc on two
different refinement levels of a mesh? Say my coarse FEM holds data on
refinement level 5 and my basis function(s) on each coarse cell live on the
leaves of each coarse cell on
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