[Nek5000-users] History points

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

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 

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