open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello, I try to use drogues ("FLOTTEUR"), but my file is empty at the end of the simulation. I use the telemac2d v6p2 and I wrote the same thing that in the manuel. I don't understand how to use drogues. I put the subroutine flot in my fortran file with the information asked by the manuel.
Faithfully,
Julien

Hello,

Particle release routines have been upgraded since v6p3. I would suggest to install the latest telemac version.

Have a look at this document which explains how the new particle routines work:
Adding a particle transport module to Telemac-2D with applications to algae blooms and oil spills

Regards,
Costas

Hello Costas,
Thank you for your quick answer.
In my case, it's a simple utilisation of drogues, is it possible with the v6p2 or not? I just want to see the evolution of one drogue or two. I just want to know if there is an other solution because it's complicated for me to install a new version of telemac. Why my binary result file is empty, maybe I have to add one sentence in the fortran file, I don't know, I did the same thing that in the test case "flotteurs".
Regards
Julien

The older version should work. Do your other results get populated properly and only the drogue file is empty? Also try disabling the variable timestep?

Costas

Yes I have the same result than before, but my drogue file is just empty. I have no problem with the other thing in the simulation. I use variable time step because I notice that with a constant time step, the simulation last a long time and sometimes, the calculation keeps looking for the solution but failed and I have to stop manually the simulation.
Best regards
Julien

I tried the constant time step, now I can see the drogues file even if the simulation lasted a long time.
Thanks a lot.