particle inserted continiously

Submitted by openfoam on Tue, 01/08/2013 - 11:20

My IE explorer cannot display the whole captcha image, I cannot reply, so I create a new topic. The following files are the log file and the in.meshGran file. During the cfdemcoupling, the atoms number became 0. But it works fine in the liggghts.

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Binary Data log file and in.meshGran file892.47 KB

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Somnath | Tue, 01/08/2013 - 21:55

Hi,

I have been able to insert particle streams during cfdemcoupling. Here is an excerpt of the code I am using. Hope it helps!

cheers
Som

#particle distributions
fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 1000 radius constant 0.001
fix pts2 all particletemplate/sphere 1 atom_type 1 density constant 1000 radius constant 0.001
fix pdd1 all particledistribution/discrete 1. 2 pts1 0.3 pts2 0.7

#region and insertion
fix ins_mesh all mesh/surface file face_simple_small.stl type 1 scale 0.001 move -20e-3 0. 0.
group nve_group region reg
fix ins nve_group insert/stream seed 10001 distributiontemplate pdd1 maxattempt 100 nparticles 10000 vel constant 0.1 0. 0. particlerate 250 overlapcheck yes insertion_face ins_mesh extrude_length 0.009

#cfd coupling
fix cfd all couple/cfd couple_every 100 mpi
fix cfd2 all couple/cfd/force

#apply nve integration to all particles that are inserted as single particles
fix integr nve_group nve/sphere

#screen output
fix ts all check/timestep/gran 1000 0.1 0.1
compute 1 all erotate/sphere
thermo_style custom step atoms ke c_1 f_ts[1] f_ts[2] vol
thermo 10000
thermo_modify lost ignore norm no
compute_modify thermo_temp dynamic yes

#insert the first particles so that dump is not empty
dump dmp all custom 10000 ../DEM/post/dump.liggghts_restart id type type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius

run 1