[Nek5000-users] wgradm1

[nek5000-users at lists.mcs.anl.gov]

Hi Josh,

yes - it's simply the gradient with weights, so that
it can be incorporated into the rhs of a weak formulation.

Paul



On Mon, 22 Apr 2013, nek5000-users at lists.mcs.anl.gov wrote:

> Hi Neks,
>
> I had a quick clarification question about the subroutine wgradm1.  The
> comments suggest it is a weak gradient, but the formulation itself looks like
> it is computing a strong gradient (and multiplying by mass), i.e.,
>
>  grad(u) = W*G*D*u
>
> (W being the weights, G being the appropriate metrics, and D begin the normal
> derivative operator).  Is this correct, or am I missing something?
>
> Thanks,
>
> Josh _______________________________________________ Nek5000-users mailing
> list Nek5000-users at lists.mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
>