Gmsh GetDP question

[Christophe Geuzaine]

Guenter Milde wrote:
> 
> Dear Christophe,
> 
> Browsing the fltk-(fast and light tool-kit)-bazaar-website I found a link to
> Gmsh/GetDP and was very courious to see what kind of problems this could
> solve. It seems to be a very interesting project.
> 
> For the project I am currently working on (simulation of a pyroelectric IR
> sensor) I look for a FEM program that can solve a harmonic temperature
> problem (1st. step) and a coupled pyroelectic/piezoelectric problem (with
> the temperature field of the first step as input). I wonder whether
> Gmsh/GetDP could solve this kind of problems or whether it would be possible
> to extend the program to do so (relatively) easily.

Hello,

GetDP is still largely a "beta" software, but it may be of some interest
for the problems you describe (Gmsh is quite multipurpose, so there is
no real applicability problem). But what do you exactly mean by a
_harmonic_ temperature problem? Is it nonlinear, but treated in the
frequency domain? Or is it linear? Is it possible/suitable to consider a
time domain analysis followed by some Fourier transform?

Concerning the piezoelectric problem, a colleague of mine is testing the
current capabilities of the software. If you want to, you may share
experience with him on this topic.

> 
> BTW: I did a relative
> exhaustive search for free fem-programs in both
> 
>    INTERNET FINITE ELEMENT RESOURCES:
>    www.engr.usask.ca/~macphed/finite/fe_resources/fe_resources.html, and
> 
>    Numerical-Analysis-Seite der "Scientific Applications on Linux":
>    SAL.KachinaTech.COM/B/2/index.shtml
> but so far as I remember GetDP was not mentioned there.

Thanks a lot for the info! I did not know about the SAL project until
now, but I think I'll submit Gmsh/GetDP.

My best,

-- 
Christophe Geuzaine

Tel: 32 (0) 4 366 37 10    http://geuz.org
Fax: 32 (0) 4 366 29 10    mailto:Christophe.Geuzaine at ulg.ac.be