Hello everyone,
I am trying to solve a simple thermal problem but finding the
documentation helpfully detailed yet overwhelming. My problem is on heat
conduction within a cubic domain with internal heat generation.
I have studied the transient heat transfer problem in step 26, in
All:
in case you wonder what is going on in the heads of the principal
developers of deal.II: I will be giving a webinar tomorrow on this topic:
https://bssw.io/events/webinar-what-i-learned-from-20-years-of-leading-open-source-projects
I believe that you have to register (it's free!) but
Hello everyone!
This is deal.II newsletter #182.
It automatically reports recently merged features and discussions about the
deal.II finite element library.
## Below you find a list of recently proposed or merged features:
#12758: Rename VECTOR to VectorType (proposed by peterrum; merged)
Thank you very much.
Regards,
Hermes
El mar, 14 sept 2021 a las 16:28, Bruno Turcksin ()
escribió:
> Hermes,
>
> You probably don't need to use reinit() in your case. You want to use
> reinit() if the structure of the matrix changes with frequency. For
> example, if you change the degree of
Mariia,
You need to make sure that the std::map also uses values of type
std::complex. The compile error you shared shows that you use
doubles.
Best,
Daniel
Am Di., 14. Sept. 2021 um 07:30 Uhr schrieb Мария Бронзова <
masianic...@gmail.com>:
> Hi everyone,
>
> I ran into the following
Hermes,
You probably don't need to use reinit() in your case. You want to use
reinit() if the structure of the matrix changes with frequency. For
example, if you change the degree of finite elements you need to call
reinit(). If you want to change the values but the structure matrix is
Dear Bruno thank you very much for pointing step-17, I could solve the
problem.
I would like to ask the last question. I am computing step-29 in parallel
for different frequencies. I have a loop for each of the frequencies as
follows:
make_grid();
setup_system();
Hermes,
Le mar. 14 sept. 2021 à 05:19, Hermes Sampedro
a écrit :
>
> Should I use dealii::PETScWrappers::MPI::SparseMatrix system_matrix instead?
> If so could ou please help me to with the reinit() function? I do not fully
> understand how to call it.
That's right, you need the matrix to be
Hi everyone,
I ran into the following difficulty: I have a vector-valued problem with
complex numbers as entries for my BlockSparseMatrix system_matrix and
BlockVector system_rhs and solution vectors and I am trying to apply
Dirichlet boundary conditions, using the
Dear Bruno, thank you for your answer it helped me to solve the problem.
I had some issues with Trilinos library so I decided to implement step-29
in parallel (similar to step-40) using dealii::PETSxWrappers. I get an
error on the solve() function on the red line:
*template* <*int* dim>
*void*
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