forked from lijiext/lammps
145 lines
5.5 KiB
Groff
145 lines
5.5 KiB
Groff
LAMMPS (18 Feb 2013)
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# Pour granular particles into chute container, then induce flow
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atom_style sphere
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boundary p p fm
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newton off
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communicate single vel yes
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region reg block -10 10 -10 10 -0.5 16 units box
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create_box 1 reg
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Created orthogonal box = (-10 -10 -0.5) to (10 10 16)
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2 by 2 by 1 MPI processor grid
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neighbor 0.2 bin
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neigh_modify delay 0
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# IMPORTANT NOTE: these values of stiffness (2000) and timestep (0.001)
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# are used in this example file to produce a quick simulation and movie.
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# More appropriate values for realistic simulations would be
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# k = 2.0e5 and dt = 0.0001, as in bench/in.chute.
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pair_style gran/hooke/history 2000.0 NULL 50.0 NULL 0.5 0
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pair_coeff * *
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timestep 0.001
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fix 1 all nve/sphere
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fix 2 all gravity 1.0 spherical 0.0 -180.0
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fix zlower all wall/gran 2000.0 NULL 50.0 NULL 0.5 0 zplane 0.0 2000.0
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region slab block -9.0 9.0 -9.0 9.0 10.0 15.0 units box
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fix ins all pour 3000 1 300719 vol 0.13 50 region slab
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Particle insertion: 402 every 3162 steps, 3000 by step 22135
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compute 1 all erotate/sphere
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thermo_style custom step atoms ke c_1 vol
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thermo 1000
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thermo_modify lost ignore norm no
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compute_modify thermo_temp dynamic yes
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#dump id all atom 1000 dump.pour
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#dump 1 all image 1000 image.*.jpg type type # axes yes 0.8 0.02 view 80 -30
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#dump_modify 1 pad 5
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run 25000
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Memory usage per processor = 9.33682 Mbytes
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Step Atoms KinEng 1 Volume
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0 0 -0 0 6600
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1000 402 779.98578 0 6600
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2000 402 1424.4252 0 6600
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3000 402 1425.0863 12.9927 6600
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4000 804 1724.8627 47.36161 6600
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5000 804 1599.9516 63.808734 6600
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6000 804 1359.1774 63.495338 6600
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7000 1206 1532.7896 68.602762 6600
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8000 1206 1403.0157 62.695772 6600
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9000 1206 1247.1412 52.224384 6600
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10000 1608 1386.1699 50.718814 6600
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11000 1608 1228.7495 56.267861 6600
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12000 1608 1189.1544 43.443594 6600
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13000 2010 1317.573 51.491142 6600
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14000 2010 1185.3306 43.927099 6600
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15000 2010 985.99454 42.308206 6600
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16000 2412 1044.9221 43.454386 6600
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17000 2412 1039.7494 36.063243 6600
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18000 2412 911.55352 38.525857 6600
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19000 2814 1013.9593 33.512188 6600
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20000 2814 959.68861 39.700347 6600
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21000 2814 744.30153 45.796008 6600
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22000 2814 518.78148 40.865035 6600
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23000 3000 418.32473 34.643341 6600
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24000 3000 364.52165 21.06497 6600
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25000 3000 216.23449 24.600132 6600
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Loop time of 2.82073 on 4 procs for 25000 steps with 3000 atoms
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Pair time (%) = 1.36596 (48.4257)
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Neigh time (%) = 0.273009 (9.67867)
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Comm time (%) = 0.360224 (12.7706)
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Outpt time (%) = 0.000543416 (0.0192651)
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Other time (%) = 0.820993 (29.1057)
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Nlocal: 750 ave 760 max 738 min
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Histogram: 1 0 0 0 0 1 1 0 0 1
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Nghost: 388 ave 390 max 387 min
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Histogram: 2 0 0 1 0 0 0 0 0 1
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Neighs: 3566.5 ave 3594 max 3538 min
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Histogram: 1 0 1 0 0 0 0 0 1 1
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Total # of neighbors = 14266
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Ave neighs/atom = 4.75533
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Neighbor list builds = 1153
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Dangerous builds = 0
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unfix ins
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fix 2 all gravity 1.0 chute 26.0
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run 25000
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Memory usage per processor = 10.1159 Mbytes
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Step Atoms KinEng 1 Volume
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25000 3000 216.23449 24.600132 6600
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26000 3000 108.39805 20.034719 6600
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27000 3000 103.08805 11.62627 6600
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28000 3000 193.88384 11.945176 6600
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29000 3000 320.96581 14.507685 6600
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30000 3000 490.74134 19.09055 6600
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31000 3000 755.89878 24.20335 6600
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32000 3000 1093.7602 32.036876 6600
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33000 3000 1447.6165 37.970427 6600
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34000 3000 1879.1719 41.830611 6600
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35000 3000 2350.6451 54.069915 6600
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36000 3000 2943.3616 63.590846 6600
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37000 3000 3655.4973 69.25479 6600
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38000 3000 4351.899 72.183547 6600
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39000 3000 5056.2313 81.96612 6600
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40000 3000 5833.5917 101.79198 6600
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41000 3000 6698.392 107.53934 6600
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42000 3000 7602.7265 119.87878 6600
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43000 3000 8669.6298 134.41156 6600
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44000 3000 9749.5781 144.67 6600
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45000 3000 10835.643 160.22694 6600
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46000 3000 11992.67 155.62346 6600
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47000 3000 13262.167 178.56213 6600
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48000 3000 14489.853 198.13017 6600
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49000 3000 15940.443 200.18228 6600
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50000 3000 17238.955 209.40216 6600
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Loop time of 5.38506 on 4 procs for 25000 steps with 3000 atoms
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Pair time (%) = 3.04231 (56.4954)
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Neigh time (%) = 0.41015 (7.61644)
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Comm time (%) = 0.572889 (10.6385)
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Outpt time (%) = 0.000714064 (0.0132601)
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Other time (%) = 1.359 (25.2364)
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Nlocal: 750 ave 755 max 744 min
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Histogram: 1 0 0 1 0 0 0 0 1 1
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Nghost: 405.25 ave 416 max 400 min
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Histogram: 2 0 1 0 0 0 0 0 0 1
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Neighs: 3625.5 ave 3698 max 3577 min
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Histogram: 1 0 1 1 0 0 0 0 0 1
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Total # of neighbors = 14502
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Ave neighs/atom = 4.834
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Neighbor list builds = 807
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Dangerous builds = 0
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