Oh! Sorry for bothered you, problem lies somewhere else - this topic can be
deleted!
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The program is suddenly terminated with exit value -1 so, I guess it is
segfault. It is very strange because the program works perfectly fine in
case 1), and after I swap coordinates between cell1 and cell2 (to get the
case 3) program just stop functioning.
W dniu czwartek, 23 stycznia 2020
Hi all!
I've encountered a problem with very simple two-cells merging in 2D
(deal.ii v.9.0.0).
Lets say that I have two rectangular cells (for two different material) and
I want to merge it together and then refine those cells properly.
I don't have a problem with this when I want to merge
Hi!
I'm looking for quick advise. In my calculations I solve two equations (in
2D) consecutively: the Poisson equation where I obtain electric field *E*,
and then I solve the continuity equation where I obtain e.g. density of
electrons *n*. I want to get current that is *j* = C*nE* where
Hi Konrad,
Thank you very much for your comment! I will try to go into the detail of
it in next days. I must admit that to this point I've just used
::make_zero_boundary_constraints with regard to the conditions on E field.
I didn't have a better idea, and your solutions seem much more better.
Wolfgang,
thank you very much once again!
Yes, on the picture is Ex, and potential was exactly as you described.
Today I was able to correct my calculations. I changed the right hand side
boundary condition to be only E=0 (what is, I think, physically correct
thing to do), and after I get the
Than you for your response!
and if I may ask for some advise:
I tried to give some additional constrains for electirc field E (I must
admit that it wasn't good idea) to avoid another unphysical results.
General physical poin of view is that I should have this kind of a
situation:
[image:
Hi dear deal.ii community!
I am trying to solve 2D transient problem in semiconductor devices and I'm
stuck with application of Dirichlet boundary values via ConstrainMatrix or
AffineMatrix (in the last version of this library)
The program (which I am rewriting) solves consecutively two
