Hi Chris,
I feel sorry to disturb you, but I noticed that there are several comments in the input file of DEM:
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
#node : f_couple_cfd[6]
#cell id : f_couple_cfd[7]
How do I output the drag forces and cell id of each particle together with dump in liggghts?
Thanks a lot for your kind help!
Best,
Tong
ckloss | Wed, 04/06/2011 - 10:06
Hi Tong, no these are old
Hi Tong,
no these are old comments. If you use a recent version, you can access the per-particle drag force with f_dragforce[0], f_dragforce[1], f_dragforce[2]
tshan | Wed, 04/06/2011 - 10:43
Hi Christoph, Thanks for you
Hi Christoph,
Thanks for you reply! Can I dump like this?
dump dmp all custom 500 post/dump.liggghts_init id type type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius f_dragforce[0] f_dragforce[1] f_dragforce[2]
But I got ERROR: Could not find dump custom fix ID.
And how about other variables, like cell id?
Thanks again!
Best,
Tong
ckloss | Wed, 04/06/2011 - 10:54
sorry, that was a typo, I
sorry, that was a typo, I meant f_dragforce[1] f_dragforce[2] f_dragforce[3]
The dump command must come after the fix couple/cfd/force
What version of LIGGGHTS are you using?
>>And how about other variables, like cell id?
this is basically no problem, but you would have to modify the code to have these properties transferred.
Christoph
tshan | Wed, 04/06/2011 - 14:29
Hi Christoph, Thanks for your
Hi Christoph,
Thanks for your explanation.
I am using both 1.1.0 and the latest version... Just ran it in them, both no problem.
Best,
Tong