How to get the cartesian coordinates using icoUncoupledKinematicParcelFoam or Paravie
 

Hello everyone :D,



I'm currently trying to track particle using the solver icoUncoupledKinematicParcelFoam of OpenFoam 7.

My simulation runs well :o but the only positions for the particles that I get are barycentric positions. However, I really don't know how to understand them or create a code to transform them into cartesian's ones. And I'm not able to get any information on internet on how to do that (well I didn't find any yet...).:confused:


I already tried on Paraview with a method that I found on another thread which was the following:

1) run the simulation
2) type paraFoam
3) explodeblocks in Paraview and select lagrangian fields
4) open a new layout and select spreadSheet View
5) export data into .csv format


I was very happy with this method ;) until I figured out that if for example at the time1.csv file, at the line 3 was the particle number 3 then at the time2.csv file, at the line 3 it's not the particle number 3 anymore but another one (the particle 5 for example).....:confused:
So I'm not able to follow the trajectory of one particle... :(



So I'm asking for help from you, if you have any solution to get the particle's Cartesian coordinates with Paraview or Openfoam and especially a solution that will allow me to follow one particle from the beginning to the end of the simulation? :confused: