multiple (coupled) PDE solving in FEniCS

Asked by Hossein Nili

Hi

I am a novice in FEniCS, so hopefully excused for posting multiple questions!

I wish to solve three PDEs (which are coupled) using a single FEniCS script. Two stationary nonlinear Poisson equations and one non-standard time-dependent PDE. Would you be able to guide me to example script(s) that are similar?

Many thanks,

Question information

Language:
English Edit question
Status:
Answered
For:
FEniCS Project Edit question
Assignee:
No assignee Edit question
Last query:
Last reply:
Revision history for this message
Kent-Andre Mardal (kent-and) said :
#1

Have a look at e.g. the
Cahn-Hilliard demo:
http://bazaar.launchpad.net/~dolfin-core/dolfin/1.2.x/view/head:/demo/pde/cahn-hilliard/python/demo_cahn-hilliard.py

Kent

On 25 March 2013 13:01, Hossein Nili
<email address hidden>wrote:

> New question #225097 on FEniCS Project:
> https://answers.launchpad.net/fenics/+question/225097
>
> Hi
>
> I am a novice in FEniCS, so hopefully excused for posting multiple
> questions!
>
> I wish to solve three PDEs (which are coupled) using a single FEniCS
> script. Two stationary nonlinear Poisson equations and one non-standard
> time-dependent PDE. Would you be able to guide me to example script(s) that
> are similar?
>
> Many thanks,
>
> --
> You received this question notification because you are a member of
> FEniCS Team, which is an answer contact for FEniCS Project.
>

Revision history for this message
Hossein Nili (hossein-nili) said :
#2

Thanks for replying, but the way I see it this is a script to solve ONE equation, right?

I am looking for an example where more than one equations are solved in a single script? Would you know any examples?

Many thanks,

Revision history for this message
Jan Blechta (blechta) said :
#3

On Mon, 25 Mar 2013 13:15:59 -0000
Hossein Nili <email address hidden> wrote:
> Question #225097 on FEniCS Project changed:
> https://answers.launchpad.net/fenics/+question/225097
>
> Status: Answered => Open
>
> Hossein Nili is still having a problem:
> Thanks for replying, but the way I see it this is a script to solve
> ONE equation, right?
>
> I am looking for an example where more than one equations are solved
> in a single script? Would you know any examples?
>
> Many thanks,
>

There are more coupled problems in demo dir. For example mixed poisson,
stokes, navier-stokes.

Revision history for this message
Hossein Nili (hossein-nili) said :
#4

Thank you!

Can you help with this problem?

Provide an answer of your own, or ask Hossein Nili for more information if necessary.

To post a message you must log in.