[Nek5000-users] extracting data in a smaller computational domain and in a plane

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

Thank you Aleks,

that is also very useful. However, it would be nice if I could extract a 
smaller 3d domain from my big computational domain. The idea is to work 
with the entire 3d small computational domain...

I need to do the same for several time steps (velocity snapshots, 
changing in time), so if it would be any way to do it directly from 
Nek5000 it would make the things much easier...

Thanks again.
SL

El 03-03-2016 04:58, nek5000-users at lists.mcs.anl.gov escribió:
> Hi SL,
> 
> The easiest way for a profile is to do the Lineout in VisIt and choose
> 'curve' format in 'Set Save Options'.
> 
> More accurate way is to setup history/coordinate points in hpts.in
> file and call hpts routine from userchk which will also work for 2D
> plane points.
> 
> Aleks
> ________________________________________
> From: nek5000-users-bounces at lists.mcs.anl.gov
> [nek5000-users-bounces at lists.mcs.anl.gov] on behalf of
> nek5000-users at lists.mcs.anl.gov [nek5000-users at lists.mcs.anl.gov]
> Sent: Wednesday, March 02, 2016 9:29 PM
> To: Nek5000 Users
> Subject: [Nek5000-users] extracting data in a smaller computational
> domain      and in a plane
> 
> Hi Neks,
> 
> I am trying to do some postprocessing of the Nek5000 results.
> 
> I have a 3D domain, however I will be interested in taking a smaller
> piece of this domain. The idea is to generate a data base of snapshots
> containing this smaller part of the domain. For example,
> 
> if my computational domain is x in (-15, 20), y in (-20, 20), z in(0,2)
> 
> I just want to take a data set of snapshots containing the velocity
> fields in the locations:
>    x in (-2, 5), y in (-5, 5), z in(0,2)
> 
> Is there any way to extract this data?
> 
> In addition, is there any way to extract the same data but in a 2d
> plane? I mean:
>    x in (-2, 5), y in (-5, 5), z=1
> 
> Thank you in advance.
> Cheers
> SL
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