[Nek5000-users] Lagrangian Particle Tracking

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

Hi Alireza,

Let me check what is a current status of development for a complete set of 
Lagrangian particle tracking routines.

My understanding that the subroutine particle_advect is written for 
the old interpolation w/ parameter mr -- we need to update it.  This 
subroutine has to be used in the timestep loop called from usrchk after 
one interpolates (w/ intpts) velocity field (to vvel) at coordinates of 
the most recent particle location rtl -- hmm, I do not see how this array 
vvel with interpolated velocity data is then passed to the subroutine 
particle_advect...

Let me look further and get back to you later.
Aleks



On Wed, 29 Jun 2011, nek5000-users at lists.mcs.anl.gov wrote:

> Hi,
>
> I have couple of questions regarding the subroutine given for Lagrangian 
> particle tracking at the following wiki page and I wonder if there are any 
> hints.
>
> http://nek5000.mcs.anl.gov/index.php/Data_processing_example
>
> - Where should this subroutine be inserted?
> - What are the variables "rtl" and "mr" representing?
> - How to set the initial positions of the particles?
> - Should the constant parameters "npart" and "dt_p" be inserted in SIZE file?
>
>
> Thanks in advance,
>
>
> Regards,
> Alireza Karimi
>
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