[Nek5000-users] Lagrangian Particle Tracking

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

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