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lammps/examples/pour/log.pour.2d.7Jul09.linux.1
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LAMMPS (7 Jul 2009)
# Pour 2d granular particles into container
dimension 2
atom_style granular
boundary f fm p
newton off
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)
1 by 1 by 1 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
run 25000
Memory usage per processor = 3.12551 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 1662.3648 111.88801 5000
10000 896 1655.1685 91.582481 5000
11000 896 1548.9965 69.469111 5000
12000 896 1479.7629 70.572203 5000
13000 1000 1465.2011 63.096293 5000
14000 1000 1382.7756 55.700126 5000
15000 1000 1129.5018 59.325005 5000
16000 1000 780.39381 51.722229 5000
17000 1000 458.39702 39.102301 5000
18000 1000 325.65355 33.121893 5000
19000 1000 153.28819 28.503721 5000
20000 1000 38.866588 18.969909 5000
21000 1000 21.899726 11.381564 5000
22000 1000 17.395375 7.9553641 5000
23000 1000 14.942624 5.4712014 5000
24000 1000 14.298296 3.7004021 5000
25000 1000 10.908914 2.5500866 5000
Loop time of 5.53212 on 1 procs for 25000 steps with 1000 atoms
Pair time (%) = 2.54339 (45.975)
Neigh time (%) = 0.470059 (8.49692)
Comm time (%) = 0.019624 (0.354729)
Outpt time (%) = 0.125119 (2.26168)
Other time (%) = 2.37392 (42.9116)
Nlocal: 1000 ave 1000 max 1000 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost: 0 ave 0 max 0 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs: 2345 ave 2345 max 2345 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Total # of neighbors = 2345
Ave neighs/atom = 2.345
Neighbor list builds = 2003
Dangerous builds = 0
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