[Paraview] NEK5000 with ParaView

Wed Mar 5 05:52:05 EST 2014

Hi Giuseppe,

Thanks for sending those output files, I could visualize the results on
non-moving mesh using Paraview 4.1.0.

Unfortunately, I have mesh-that is deformed at ever time step, so need to
update the mesh in the Paraview. I hope Paraview incorporates this feature
soon, just like it can do for file saved in VTK format.

Thanks for your help, I will keep looking.

Regards
Ravi

On Mon, Mar 3, 2014 at 3:24 AM, Giuseppe Pitton <
giuseppe.pitton at mail.polimi.it> wrote:

>  Hi Ravi,
> yes, Paraview 4.1.0 is working properly with the standard output of
> NEK5000 (that means, with fixed mesh, and with the mesh data only on the
> first timestep). I attach an example which works for me.
> Hope it helps.
> Regards,
> Giuseppe
>
>  Il giorno 02/mar/2014, alle ore 17:16, Ravi Tumkur ha scritto:
>
>     Hello Giuseppe,
>
>  Thanks a lot for replying to my query.
>
>  I understand that you are also facing the same issue of only one
> time-step's mesh geometry begin loaded when you try to use Paraview 4.1.0
> to visualize your post-processed data.
>
>  When you say using Praview 4.1.0 resolved your issue at the beginning of
> your email, do you mean you were able to visualize *.fld* data in Paraview?
> If so, can you please send an example database set and the metadata file?
>
>  I am trying to visualize moving-mesh results for the basic problem of
> vortex-shedding past a cylinder moving with prescribed motion. The flow
> results are rendered as expected in Paraview for each time step, but the
> mesh appears stationary, corresponding to "firsttimestep", as you also
> observe too.
>
>  I appreciate your help, a set to example database will get me started on
> using Paraview for visualizing NEK-5000 data.
>
>
>  Regards
> Ravi
>
>
>
>
>
> On Sat, Mar 1, 2014 at 2:45 AM, Giuseppe Pitton <giuseppe.pitton at gmail.com
> > wrote:
>
> Hello Ravi,
> although Paraview 4.1.0 solved my issue, now I am experiencing the same
> problem you report with some postprocessed data (but I have a fixed mesh).
> In my opinion this happens when the dataset has mesh information stored on
> each .f or .fld file. I think Paraview expects to have mesh information
> only in the first file of the dataset, and it is not behaving well if this
> is not the case.
> I suspect this because if I edit my .nek5000 file and change the value
> of firsttimestep setting it to n, then Paraview correctly visualizes the
> data of the n-th time step, but again it cannot display correctly the data
> of the following timesteps.
> I also can share some example dataset if it can help.
> Best regards,
> Giuseppe
>
>
>
>  Il giorno 28/feb/2014, alle ore 12:40, Ravi Tumkur ha scritto:
>
>    Hello Patrick and Giuseppe,
>
>  I am also facing the same issue as Giuseppe did on visualizing the
> NEK5000 solution data. I have simulated a moving boundary problem using
> NEK5000, and have the output saved in *.fld* format. When I load the meta
> file to read the files in Paraview, only one time-step mesh geometry is
> loaded, whereas the field results of all the time-steps are available in
> Paraview.
>
>  I would appreciate if either of you could suggest any workaround to read
> the moving mesh geometry which is saved for each time-step of the solution.
>
>  I am trying to read my NEK5000 output in version 4.1.0 64-bit Paraview
> installation. If you want the data files, please let me know, I can send
> them across.
>
>  Thanks in advance for you help.
>
>  Sincerely,
>  Ravi
>
>
>
>
>
> On Mon, Jan 20, 2014 at 10:44 AM, Patrick O'Leary <
> patrick.oleary at kitware.com> wrote:
>
>   Dear Giuseppe,
>
>  Yes I remember the issue. I have a test data set, and I just tested it.
> It works with version 4.1. Send me your data set and I'll look at what we
> might have missed.
>
>  Best regards,
>  Patrick
>
>
> On Mon, Jan 20, 2014 at 8:37 AM, Giuseppe Pitton <
> giuseppe.pitton at gmail.com> wrote:
>
> Dear Patrick,
> I am a ParaView user, and I am experiencing some issues with NEK5000
> output format, both with the 4.0.1 and the 4.1 version.
> I have found a user already reported this bug, but I have not found any
> solution online. The problem is that only the first timestep is visualized,
> and not the following ones. If you want, I could send you an example output
> (few Mb).
> Thank you in advance, best regards.
> Giuseppe Pitton
>
>
>
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>
> --
> Ravi Kumar T R
>
> University of Illinois at Urbana-Champaign
> ph : +1 217 778 7538
> http://lndvl.mechse.illinois.edu/
>
>
>
>
>
> --
> Ravi Kumar T R
>
> University of Illinois at Urbana-Champaign
> ph : +1 217 778 7538
> http://lndvl.mechse.illinois.edu/
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Follow this link to subscribe/unsubscribe:
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-- 
Ravi Kumar T R

University of Illinois at Urbana-Champaign
ph : +1 217 778 7538
http://lndvl.mechse.illinois.edu/
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