137 lines
5.3 KiB
Groff
137 lines
5.3 KiB
Groff
LAMMPS (12 Feb 2007)
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# Pour granular particles into chute container, then induce flow
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atom_style granular
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boundary p p fm
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newton off
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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 box = (-10 -10 -0.5) to (10 10 16)
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1 by 1 by 1 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/history 2000.0 50.0 0.50 0
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timestep 0.001
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fix 1 all nve/gran
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fix 2 all gravity spherical 0.0 -180.0
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fix zlower all wall/gran zplane 0.0 2000.0 50.0 0.5
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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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thermo_style granular
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thermo 1000
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thermo_modify lost ignore
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compute_modify thermo_temp dynamic yes
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dump id all atom 125 dump.pour
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run 25000
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Memory usage per processor = 0.335693 Mbytes
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Step Atoms KinEng RotKEgrn 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 1424.6738 13.243803 6600
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4000 804 1725.9135 47.193854 6600
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5000 804 1605.9404 61.336034 6600
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6000 804 1364.6108 67.554058 6600
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7000 1206 1511.4113 74.376707 6600
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8000 1206 1418.8901 57.72159 6600
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9000 1206 1256.2845 48.910044 6600
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10000 1608 1398.3246 51.447622 6600
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11000 1608 1247.546 48.387594 6600
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12000 1608 1182.5307 42.323247 6600
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13000 2010 1308.4067 48.900862 6600
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14000 2010 1184.2874 44.83509 6600
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15000 2010 1005.943 39.943887 6600
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16000 2412 1031.9872 47.786837 6600
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17000 2412 1032.5851 40.540687 6600
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18000 2412 919.78138 36.200329 6600
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19000 2814 1017.0854 35.573349 6600
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20000 2814 964.17268 41.63371 6600
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21000 2814 748.30864 44.884418 6600
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22000 2814 531.66082 40.886555 6600
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23000 3000 415.96265 35.009259 6600
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24000 3000 363.92132 18.910655 6600
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25000 3000 223.50386 24.163325 6600
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Loop time of 77.9105 on 1 procs for 25000 steps with 3000 atoms
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Pair time (%) = 44.229 (56.769)
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Neigh time (%) = 4.82477 (6.19271)
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Comm time (%) = 2.59149 (3.32625)
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Outpt time (%) = 1.80922 (2.32218)
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Other time (%) = 24.456 (31.3899)
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Nlocal: 3000 ave 3000 max 3000 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Nghost: 675 ave 675 max 675 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Neighs: 13637 ave 13637 max 13637 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Total # of neighbors = 13637
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Ave neighs/atom = 4.54567
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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 chute 26.0
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run 25000
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Memory usage per processor = 7.24008 Mbytes
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Step Atoms KinEng RotKEgrn Volume
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25000 3000 223.50386 24.163325 6600
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26000 3000 116.7995 18.613728 6600
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27000 3000 122.40388 11.057402 6600
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28000 3000 231.29589 11.189183 6600
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29000 3000 394.03717 14.367314 6600
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30000 3000 647.20427 22.016262 6600
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31000 3000 908.91364 28.607326 6600
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32000 3000 1271.4653 30.481316 6600
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33000 3000 1667.4275 41.693229 6600
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34000 3000 2165.6715 50.388564 6600
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35000 3000 2742.9875 52.867314 6600
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36000 3000 3313.9686 64.802217 6600
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37000 3000 4043.4311 73.963901 6600
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38000 3000 4826.4345 82.469868 6600
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39000 3000 5665.19 95.419726 6600
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40000 3000 6555.0312 105.12519 6600
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41000 3000 7541.9934 121.4346 6600
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42000 3000 8632.6663 129.37799 6600
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43000 3000 9666.568 132.68521 6600
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44000 3000 10825.138 153.12413 6600
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45000 3000 12010.686 165.13241 6600
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46000 3000 13364.225 184.80686 6600
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47000 3000 14694.757 196.08109 6600
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48000 3000 16083.771 220.53678 6600
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49000 3000 17548.113 228.11249 6600
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50000 3000 19103.087 244.48465 6600
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Loop time of 158.137 on 1 procs for 25000 steps with 3000 atoms
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Pair time (%) = 98.0991 (62.0342)
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Neigh time (%) = 7.5106 (4.74943)
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Comm time (%) = 5.67871 (3.59101)
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Outpt time (%) = 2.85027 (1.8024)
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Other time (%) = 43.9984 (27.823)
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Nlocal: 3000 ave 3000 max 3000 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Nghost: 766 ave 766 max 766 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Neighs: 13994 ave 13994 max 13994 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Total # of neighbors = 13994
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Ave neighs/atom = 4.66467
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Neighbor list builds = 833
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Dangerous builds = 0
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