Search found 31 matches

by guingo
Tue Nov 10, 2015 9:41 am
Forum: Discussion
Topic: Particle dispersion model of Code_Saturne
Replies: 4
Views: 7863

Re: Particle dispersion model of Code_Saturne

Hello, and sorry for the delay, as Yvan said, the Lagrangian module theoretical part (physical modeling and trajectography step) is currently described in internal reports, which will be in the future translated and integrated in the general theoretical manual of Code_Saturne. For a description of t...
by guingo
Tue Feb 10, 2015 9:48 pm
Forum: code_saturne usage
Topic: Reference missing
Replies: 2
Views: 2208

Re: Reference missing

Hi,

the following link should work
http://publications.onera.fr/exl-php/vu ... /DOC376449

just click on the PDF icon to get the manuscript

Best regards,
Mathieu
by guingo
Sat Jun 21, 2014 7:36 pm
Forum: code_saturne usage
Topic: Special particles shape
Replies: 3
Views: 2459

Re: Special particles shape

Dear Chayawat, To my knowledge, it is not planned in a near future to implement dedicated models to simulate the trajectories of elongated, fiber-like objects (for instance) in a turbulent flows with the particle-tracking module of Code_Saturne, if this was what you had in mind. Additional equations...
by guingo
Sun Dec 01, 2013 10:00 pm
Forum: code_saturne usage
Topic: droplet evaporation in Lagrangian module
Replies: 1
Views: 2550

Re: droplet evaporation in Lagrangian module

Hi Yasmine, I fear that there is no evaporation model implemented in Code_Saturne; the fact that there is a grayed-out option in the GUI is most probably a mistake and should be corrected. If you are interested, I suggest to start by modifying the lagidp subroutine to implement the variation of the ...
by guingo
Tue Aug 13, 2013 9:54 pm
Forum: code_saturne usage
Topic: Trajectory problem with Paraview
Replies: 12
Views: 6195

Re: Trajectory problem with Paraview

Hi, starting from 3.1, Displacement.CASE is replaced by Particles.CASE with the same purpose, i.e. visualizing the time evolution of the particle position (= making animated movies with EnSight of Paraview) and additional attached variables. The setting of the particles output in the GUI has been mo...
by guingo
Wed Jul 31, 2013 3:12 pm
Forum: code_saturne usage
Topic: Variable Definition
Replies: 1
Views: 1666

Re: Variable Definition

Hi, cs_lagr_tracking.c contains currently (almost) only functions dedicated to locate the particles in the domain at the end of the time step, and to manage the interactions between particles and boundaries (see _bdy_treatment). The physical modeling is mostly in FORTRAN subroutines; for instance, l...
by guingo
Fri Jul 26, 2013 8:14 am
Forum: code_saturne usage
Topic: Lagrangian solver
Replies: 1
Views: 2384

Re: Lagrangian solver

Hi, in the Lagrangian boundary condition, you must prescribe a number a classes other than 0 to inject particles through your inlet. (Note that due to a display bug, after setting for instance "1" class, you will have to click again on the "1" to have access to the definition of ...
by guingo
Tue Jul 23, 2013 7:44 pm
Forum: code_saturne usage
Topic: Specific particle / boundary interaction : USLABO
Replies: 9
Views: 4567

Re: Specific particle / boundary interaction : USLABO

Hi, from what I read, once the correction done, the pieces of codes should be equivalent. "particle.mass" is indeed the mass of one particle, so if you run a monodisperse calculation it should give basically the same value as any "ettp(ip,jmp)" (do not hesitate to perform some pr...
by guingo
Tue Jul 23, 2013 8:07 am
Forum: code_saturne usage
Topic: Specific particle / boundary interaction : USLABO
Replies: 9
Views: 4567

Re: Specific particle / boundary interaction : USLABO

Hi, Maybe I am wrong, but I think you are dividing one time too many by face_area your variable vi in the CS 3.0 version of youir code. Perhaps the confusion stems from the fact that "surfbo({1,2,3}, kface)" in CS 2.0 is not a unit vector, but a vector whose norm is 'surfbn(kface)' . Howev...
by guingo
Mon Jul 22, 2013 8:04 am
Forum: code_saturne usage
Topic: particle statistics
Replies: 3
Views: 2140

Re: particle statistics

Hi,

if properly activated, particle boundary statistics should then appear as variables in the postprocessing/RESULT.case file (which can be read by Paraview or Ensight for instance)

Best regards,
Mathieu