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Re: [Getfem-users] Implementing nonlinearity with multiple variables
From: |
Yves Renard |
Subject: |
Re: [Getfem-users] Implementing nonlinearity with multiple variables |
Date: |
Mon, 17 Feb 2014 10:57:49 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 |
Dear Xilexio,
The high-level generic assembly should be the easiest way, yes. It is
not fully stable, but for such a simple use, it should work correctly.
If it could help you, I can send you an archive whith the current
version (i.e. with no need to use autogen.sh).
Yves.
Le 16/02/2014 12:24, Xilexio a écrit :
> I'm trying to implement discretization of reaction-diffusion PDEs
> (u_t(x,t) - D^2 u(x,t) = f(u(x,t)), where my unknown (u : R^2 x R ->
> R^3) is multi-dimensional (not a vector though) and function f
> (R^3->R^3) is a rational function (P_k/P_l). I'm having trouble with
> discretizing f(u(x,t)). I'm using getfem 4.2 on Windows, mingw32 (with
> muparser).
>
> Is there a way to implement discretization of f(u(x,t)) without using
> internal functions?
>
> Basic nonlinear brick supports only a single scalar field variable and
> low-level generic assembly requires coding non-linear term using
> getfem++'s internals.
>
> I'd use high-level generic assembly from svn trunk's getfem++, but it
> doesn't ./configure for me (after ./autogen.sh, ./configure has syntax
> errors in config.status and, after repairing it, missing Makefiles and
> other files).
>
> _______________________________________________
> Getfem-users mailing list
> address@hidden
> https://mail.gna.org/listinfo/getfem-users
--
Yves Renard (address@hidden) tel : (33) 04.72.43.87.08
Pole de Mathematiques, INSA-Lyon fax : (33) 04.72.43.85.29
20, rue Albert Einstein
69621 Villeurbanne Cedex, FRANCE
http://math.univ-lyon1.fr/~renard
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