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lammps/examples/pour/log.pour.2d.18Feb13.linux.4
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LAMMPS (18 Feb 2013)
# Pour 2d granular particles into container
dimension 2
atom_style sphere
boundary f fm p
newton off
communicate single vel yes
region reg block 0 100 0 50 -0.5 0.5 units box
create_box 1 reg
Created orthogonal box = (0 0 -0.5) to (100 50 0.5)
4 by 1 by 1 MPI processor grid
neighbor 0.2 bin
neigh_modify delay 0
# IMPORTANT NOTE: these values of stiffness (4000) 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 = 4.0e5 and dt = 0.0001, as in bench/in.chute (if it were Hertzian).
pair_style gran/hertz/history 4000.0 NULL 100.0 NULL 0.5 0
pair_coeff * *
timestep 0.001
fix 1 all nve/sphere
fix 2 all gravity 1.0 spherical 0.0 -180.0
fix xwalls all wall/gran 4000.0 NULL 100.0 NULL 0 1 xplane 0 100
fix ywalls all wall/gran 4000.0 NULL 100.0 NULL 0 1 yplane 0 NULL
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
compute 1 all erotate/sphere
thermo_style custom step atoms ke c_1 vol
thermo 1000
thermo_modify lost ignore norm no
compute_modify thermo_temp dynamic yes
#dump id all atom 250 dump.pour
#dump 1 all image 500 image.*.jpg type type # zoom 1.6 adiam 1.5
#dump_modify 1 pad 5
run 25000
Memory usage per processor = 9.54554 Mbytes
Step Atoms KinEng 1 Volume
0 0 -0 0 5000
1000 224 185.87695 0 5000
2000 224 348.08417 0 5000
3000 224 565.2162 0 5000
4000 448 1042.9716 0 5000
5000 448 1542.0614 0 5000
6000 448 1766.5136 41.192729 5000
7000 672 1846.4596 67.352592 5000
8000 672 1814.3429 92.898167 5000
9000 672 1662.3643 111.88767 5000
10000 896 1652.8654 91.325153 5000
11000 896 1541.4417 70.862864 5000
12000 896 1474.3165 61.956769 5000
13000 1000 1463.9007 59.436066 5000
14000 1000 1355.973 51.999639 5000
15000 1000 1130.5891 49.13995 5000
16000 1000 787.89487 46.05549 5000
17000 1000 462.83858 40.678165 5000
18000 1000 325.64118 32.743319 5000
19000 1000 155.22607 30.549487 5000
20000 1000 43.494925 22.262581 5000
21000 1000 23.694914 15.061018 5000
22000 1000 20.580126 10.477019 5000
23000 1000 16.06558 7.3034265 5000
24000 1000 12.026429 6.0665971 5000
25000 1000 11.818403 5.4542268 5000
Loop time of 0.908638 on 4 procs for 25000 steps with 1000 atoms
Pair time (%) = 0.304472 (33.5086)
Neigh time (%) = 0.0796848 (8.76969)
Comm time (%) = 0.0719426 (7.91763)
Outpt time (%) = 0.000483155 (0.0531735)
Other time (%) = 0.452056 (49.7509)
Nlocal: 250 ave 252 max 248 min
Histogram: 1 0 1 0 0 0 0 1 0 1
Nghost: 18 ave 25 max 12 min
Histogram: 1 1 0 0 0 0 1 0 0 1
Neighs: 604.25 ave 614 max 589 min
Histogram: 1 0 0 0 1 0 0 0 0 2
Total # of neighbors = 2417
Ave neighs/atom = 2.417
Neighbor list builds = 2023
Dangerous builds = 0
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