[Nek5000-users] Read Nek output in Matlab

nek5000-users at lists.mcs.anl.gov nek5000-users at lists.mcs.anl.gov
Wed Nov 9 06:50:59 CST 2016


Hi Alessandro,

alternatively you can use the functions that I and a colleague of mine 
wrote.
They can read and write nek's files.

You can find them here
https://github.com/nfabbiane/nekmatlab


Cheers,
Jacopo


On 2016-11-02 15:20, nek5000-users at lists.mcs.anl.gov wrote:
> Alessandro,
>
> Set, in usrdat2 in your .usr file the following lines:
>
>        param(66)=0
>        param(67)=0
>
> this will give you an ascii file output.  blah.fld01  blah.fld02 etc
>
> You can edit these files or write a short script to take off the header or
> whatever and then load the data into matlab.
>
> Usual data lay out (for 2D) is:
>
> x y u v p T
>
> for fld01
>
> and
>
> u v p T
>
> for all other fields.
>
> Paul
>
> ________________________________________
> 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, November 02, 2016 7:44 AM
> To: nek5000-users at lists.mcs.anl.gov
> Subject: [Nek5000-users] Read Nek output in Matlab
>
> Hi Neks,
>
> I would like to make some postprocessing with the Nek output. Can I read
> that files in Matlab (or C)?
>
> Just to make it clear: If my .rea file is called whatever.rea and the
> output is whatever0.f00****
>
> I would like to read whatever0.f00**** and make some postprocessing. It
> will be also very helpful to learn how to extrapolate the mesh so that I
> can plot combinations of the solutions for instance.
>
> Thank you so much,
>
> Alessandro
>
>
> --
> Dr Alessandro Alla
>
> Florida State University
> Department of Scienfitic Computing
> 400 Dirac Science Library
> Tallahassee FL 32306-4120
>
> Room:   462
> Phone:  +1 8506441010
>
> E-Mail: aalla at fsu.edu
> Skype: alessandro.alla
> www.alessandroalla.com
>
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