[Nek5000-users] Maintaining order of perturbation

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

Hi Sayed,

When you say it changed the order, how do you mean?

It should indeed just averaged the interface values, so it
should be of the same order as the initial perturbation.

Paul


On Tue, 14 May 2013, nek5000-users at lists.mcs.anl.gov wrote:

> Hi all,
>
> I want to add perturbation of specific order (e.g. 10^-08) to the whole
> velocity field at each time-step. The velocity and pressure are both
> considered on GLL points. After adding perturbation, to have velocity as
> continuous function across the elements dsavg() is called (I found the
> info in one of the threads). I think it changes the order of perturbation
> near to the element boundary. I was wondering if there is other way to do
> so.
>
> This is my first mail to the group and I am using the code for my thesis.
>
> Thanks in advance!
>
> Best regards,
> Sayed
> MSc. COSSE
> KTH, Sweden
> FAU-Erlangen,Germany
>
>
>
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