[Nek5000-users] Lagrangian Particle Tracking
nek5000-users at lists.mcs.anl.gov
nek5000-users at lists.mcs.anl.gov
Wed Jun 29 14:42:44 CDT 2011
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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