[Nek5000-users] Grid to grid interpolation

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

Hi Stefan, 



I have a question about this routine.  I haven't tried this yet, but I am curious if the "overall domain" 

of the new mesh needs to be exactly the same as the old mesh?  Or if you can remove a portion of 

the domain completely, but still use g2gi to interpolate onto the new, remaining mesh? 



Thanks for any info! 



- Michael 


----- Original Message ----- 
From: nek5000-users at lists.mcs.anl.gov 
To: nek5000-users at lists.mcs.anl.gov 
Sent: Tuesday, August 24, 2010 1:45:24 AM GMT -06:00 US/Canada Central 
Subject: Re: [Nek5000-users] Grid to grid interpolation 


Shriram: 

The g2gi() routine can be used to interpolate an existing field file onto a new mesh - so it will do exactly what you want to do. 
For more details: http://nek5000.mcs.anl.gov/index.php/Data_processing_example 



Stefan 



On Tue, Aug 24, 2010 at 3:31 AM, < nek5000-users at lists.mcs.anl.gov > wrote: 



Hi, 


Recently there was an updated routine in nek called grid-to-grid interpolation (g2gi). I tried to understand it by grepping to source code, but couldn't make much sense out of it. Could anyone brief what it is it for ? 


I have a nek simulation in which I have got lots of data, but for some comparisons, would like to do a grid refinement (quad/oct from prenek) and restart from the existing field files if that is possible. I know that for h-type refinement, usually the simulation has to be started afresh. But I was wondering if g2gi would make it possible to restart from a previous simulation. 


Thanks 
Shriram 

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