Re: [Getfem-users] How to impose the normal derivative to zero on a model ?

[Renard Yves]

Dear Sebastien,

If you have to prescribe a zero Neumann condition to your unknown  
(assuming that it is an order two isotropic pde), you
do not have to add anything to your model. This is somehow a default  
boundary condition as it add nothing to the weak formulation.

Yves.


sébastien janas <address@hidden> a écrit :

> hi,
>
> I am using the python interface of getfem. I want to impose the normal
> derivative of my unknow to zero at the boundary, but it seems that the
> model method "add.normal_derivative_source_term" don't exist, is it
> correct ? If yes, what's the best way to impose such a condition on a
> model ?
>
> Thanks a lot for your help,
>
> Sébastien
>
>
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