Re: Source term

[Bourriche Lahoussaine]

Hello,
No it's  a list of values ( not expression).
Do you have an idea how to deal with this 

Cordialement

Lahoussaine BOURRICHE
3A, ENSEEIHT , Physique numérique
+33 6 20 76 17 12

----- Mail d’origine -----
De: Konstantinos Poulios <logari81@googlemail.com>
À: Bourriche Lahoussaine <lahoussaine.bourriche@etu.toulouse-inp.fr>
Cc: getfem-users <getfem-users@nongnu.org>
Envoyé: Thu, 02 Jun 2022 13:54:57 +0200 (CEST)
Objet: Re: Source term

Hello,

When you say that you have a value for each element, do you have an
analytic expression for that, or do you have something like a list with
element number --> value?

If you have an analytic expression then you can use md.interpolation(....)
to assign your source data to a model variable. Something like this
(assuming that your problem variable is called u):

N = m.dim()
mf = gf.MeshFem(m,N)
mf.set_classical_fem(0) # zero degree fem, i.e. discontinuous
...
md.add_fem_data("source", md.interpolation(".....", mf, RG_ID))
md.add_linear_term(mim, "source.Test_u", RG_ID)

BR
Kostas

On Thu, Jun 2, 2022 at 11:54 AM Bourriche Lahoussaine <
lahoussaine.bourriche@etu.toulouse-inp.fr> wrote:

> Hello
> I want to define a source term in a specific region, the source is a
> vector of values ( for each elemnt i have a source value ).
> How it will be?
> Cordialement
>
> Lahoussaine BOURRICHE
>
>