[Nek5000-users] History points

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

Hi Aleks,

One question; what exactly is 'grep History logfile'?  

Cheers,
Frank

On Wed, 2010-05-05 at 15:17 -0500, nek5000-users at lists.mcs.anl.gov
wrote:
> Hi Jean-Christophe,
> 
> This examples forces Nek5000 to output into the file blah.sch a time trace (H) of pressure (P), x & y velocity components (UV) for a point located in the element w/ global number IEL and collocation coordinates I,J K.
> 
> Use 'grep History logfile' to get coordinates of the points.
> 
> Aleks
> 
> 
> 
> 
> ----- Original Message -----
> From: nek5000-users at lists.mcs.anl.gov
> To: nek5000-users at lists.mcs.anl.gov
> Sent: Wednesday, May 5, 2010 12:22:03 PM GMT -06:00 US/Canada Central
> Subject: [Nek5000-users] History points
> 
> 
> Hello Nek's, 
> 
> I have a few questions on how to use the history points. 
> I have seen on the wiki the following stuff: 
> 
> 
> History points 
> 
> 
> Specify grid points to monitor the specified variables in time. Example: ***** HISTORY AND INTEGRAL DATA *****
> 1    POINTS.  Var, Hcode, I, J, K, IEL
>              UV P    H    2  2  1  4 
> 
> NOTE: 
> 
>     • Make sure LHIS in SIZEu is large enough 
> I bet Var stands for variable, but what do Hcode, I, J, K, and IEL stand for ? 
> 
> Once you have specified the location of your history point, let's say a point on the centerline of a stenotic flow at whatever streamwise station, how do you get the data concerning this history point? Do you have to change anything else in the output specification section ? I have tried to add the wiki lines up there directly in my blah.rea but once I ran the code I did not get any new files other than the expected blah.fld's. 
> 
> Regards, 
> Jean-Christophe 
> 
> _______________________________________________
> Nek5000-users mailing list
> Nek5000-users at lists.mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
> _______________________________________________
> Nek5000-users mailing list
> Nek5000-users at lists.mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
-- 
Frank Herbert Muldoon, Ph.D. Mechanical Engineering
Technische Universität Wien (Technical University of Vienna)
Inst. f. Strömungsmechanik und Wärmeübertragung (Institute of Fluid
Mechanics and Heat Transfer)
Resselgasse 3
1040 Wien
Tel: +4315880132232
Fax: +4315880132299 
Cell:+436765203470
fmuldoo (skype)
http://tetra.fluid.tuwien.ac.at/fmuldoo/public_html/webpage/frank-muldoon.html