[Getdp] Info test-nl.pro

Christophe Geuzaine cag32 at case.edu
Sun Mar 5 01:46:43 CET 2006


elettro-g- at tiscali.it wrote:
> Hi,
> I am an italian Phd student and i want use GetDP for investigate the 
> induction motors. I find very interesting the simple you develop 
> about 
> the steel non linearity. Looking the code, i have some difficulty  to 
> understan the formulation involved.
> In particular i do'nt understand the "Magsta_a_nl"...i comprise good 
> the a formulation in the linear case, but in the non linear case i 
> don't understand, in particular, the following espression:
> 
>       Galerkin { JacNL[ - dbdh[ {d phi} ] * Dof{d phi} , {d phi} ] ; 
>                  In Steel ; Jacobian MyJac ; Integration MyInt ; }
> 
>       Galerkin { [ b[ - {d phi} ] , {d phi} ]  ; 
>                 In Steel ; Jacobian MyJac ; Integration MyInt ; }
> 
> What's the meanig of JacNL? What it's role?

It represents the Jacobian used in the Newton-Raphson iterations.



> Why, in the non linar case, is necessary to add the secon expression?
> Mybe I don't Know the right formulation..
> 
> Thenks a lot for your time and your work!!
> I hope you can help me!
> Best
> Ing.  Luigi Alberti
> 
> 
> 
> 		
> Tiscali ADSL 4 Mega Flat
> Naviga senza limiti con l'unica Adsl a 4 Mega di velocità a soli 
> 19,95 
> € al mese!
> Attivala subito e hai GRATIS 2 MESI e l'ATTIVAZIONE. 
> http://abbonati.tiscali.it/banner/middlepagetracking.html%3Fc%
> 3Dwebmailadsl%26a%3Dwebmail%26z%3Dwebmail%26t%3D14%26r%3Dhttp%
> 3A//abbonati.tiscali.it/adsl/sa/4flat_tc/
> 
> 
> 
> 
> 		
> Tiscali ADSL 4 Mega Flat
> Naviga senza limiti con l'unica Adsl a 4 Mega di velocità a soli 19,95 
> € al mese!
> Attivala subito e hai GRATIS 2 MESI e l'ATTIVAZIONE. 
> http://abbonati.tiscali.it/banner/middlepagetracking.html%3Fc%
> 3Dwebmailadsl%26a%3Dwebmail%26z%3Dwebmail%26t%3D14%26r%3Dhttp%
> 3A//abbonati.tiscali.it/adsl/sa/4flat_tc/
> 
> 
> 
> 
> 		
> Tiscali ADSL 4 Mega Flat
> Naviga senza limiti con l'unica Adsl a 4 Mega di velocità a soli 19,95 € al mese!
> Attivala subito e hai GRATIS 2 MESI e l'ATTIVAZIONE. 
> http://abbonati.tiscali.it/banner/middlepagetracking.html%3Fc%3Dwebmailadsl%26a%3Dwebmail%26z%3Dwebmail%26t%3D14%26r%3Dhttp%3A//abbonati.tiscali.it/adsl/sa/4flat_tc/
> 
> _______________________________________________
> getdp mailing list
> getdp at geuz.org
> http://www.geuz.org/mailman/listinfo/getdp


-- 
Christophe Geuzaine
Assistant Professor, Case Western Reserve University, Mathematics
http://www.case.edu/artsci/math/geuzaine



More information about the getdp mailing list