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lammps/examples/pour/log.pour.2d.12Feb07.liberty.4
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LAMMPS (12 Feb 2007)
# Pour 2d granular particles into container
dimension 2
atom_style granular
boundary p fm p
newton off
region reg block 0 100 0 50 -0.5 0.5 units box
create_box 1 reg
Created box = (0 0 -0.5) to (100 50 0.5)
2 by 2 by 1 processor grid
neighbor 0.2 bin
neigh_modify delay 0
# IMPORTANT NOTE: these values of stiffness (2000) and timestep (0.001)
# are used in this example file to produce a quick simulation and movie.
# More appropriate values for realistic simulations would be
# k = 2.0e5 and dt = 0.0001, as in bench/in.chute.
pair_style gran/hertzian 2000.0 50.0 0.0 0
timestep 0.001
fix 1 all nve/gran
fix 2 all gravity spherical 90.0 -90.0
fix xwalls all wall/gran xplane 0 100 50 0
fix ywalls all wall/gran yplane 0 NULL 50 0
region slab block 1.0 99.0 30 34.5 -0.5 0.5 units box
fix ins all pour 1000 1 4767548 vol 0.4 10 diam 0.5 1.0 region slab
Particle insertion: 224 every 3000 steps, 1000 by step 12001
fix 3 all enforce2d
thermo_style granular
thermo 1000
thermo_modify lost ignore
compute_modify thermo_temp dynamic yes
dump id all atom 100 dump.pour
run 25000
Memory usage per processor = 0.335693 Mbytes
Step Atoms KinEng RotKEgrn Volume
0 0 -0 0 5000
1000 224 348.20549 0 5000
2000 224 650.98655 0 5000
3000 224 1056.0039 0 5000
4000 448 1941.6817 0 5000
5000 448 2869.092 0 5000
6000 448 3310.8798 0 5000
7000 672 3505.2381 0 5000
8000 672 3325.8942 0 5000
9000 672 3165.2505 0 5000
10000 896 3170.2639 0 5000
11000 896 2947.3721 0 5000
12000 896 2860.549 0 5000
13000 1000 2845.3312 0 5000
14000 1000 2632.0994 0 5000
15000 1000 2195.3133 0 5000
16000 1000 1551.8485 0 5000
17000 1000 941.82431 0 5000
18000 1000 684.95986 0 5000
19000 1000 346.24904 0 5000
20000 1000 100.47441 0 5000
21000 1000 55.606283 0 5000
22000 1000 47.410559 0 5000
23000 1000 38.365449 0 5000
24000 1000 27.535477 0 5000
25000 1000 16.082932 0 5000
Loop time of 7.63049 on 4 procs for 25000 steps with 1000 atoms
Pair time (%) = 1.21044 (15.8632)
Neigh time (%) = 0.267945 (3.51151)
Comm time (%) = 1.8156 (23.794)
Outpt time (%) = 0.418886 (5.48963)
Other time (%) = 3.91762 (51.3417)
Nlocal: 250 ave 502 max 0 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Nghost: 12 ave 25 max 0 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Neighs: 620.5 ave 1252 max 0 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Total # of neighbors = 2482
Ave neighs/atom = 2.482
Neighbor list builds = 1725
Dangerous builds = 0
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