136 lines
5.2 KiB
Groff
136 lines
5.2 KiB
Groff
LAMMPS (1 Oct 2006)
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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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2 by 2 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 insert 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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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 Trans-KE Rot-KE 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 1425.2447 14.149848 6600
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4000 804 1717.4634 46.771706 6600
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5000 804 1600.9045 53.21935 6600
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6000 804 1351.6492 60.760589 6600
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7000 1206 1565.6473 62.669488 6600
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8000 1206 1417.1737 62.758562 6600
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9000 1206 1258.9904 51.005212 6600
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10000 1608 1399.1287 49.839456 6600
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11000 1608 1243.873 48.930454 6600
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12000 1608 1195.4479 43.545487 6600
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13000 2010 1306.9138 54.570296 6600
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14000 2010 1157.9021 43.330935 6600
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15000 2010 983.9019 43.615315 6600
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16000 2412 1034.6442 42.147002 6600
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17000 2412 1031.4629 40.030993 6600
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18000 2412 893.29609 38.534882 6600
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19000 2814 1016.6024 38.562892 6600
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20000 2814 957.40159 41.423471 6600
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21000 2814 761.01108 38.191827 6600
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22000 2814 522.65734 42.380196 6600
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23000 3000 441.50278 37.280492 6600
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24000 3000 364.60716 19.154219 6600
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25000 3000 226.05523 23.102252 6600
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Loop time of 13.6809 on 4 procs for 25000 steps with 3000 atoms
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Pair time (%) = 4.87714 (35.6493)
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Neigh time (%) = 0.748691 (5.47254)
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Comm time (%) = 3.72672 (27.2403)
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Outpt time (%) = 0.640552 (4.6821)
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Other time (%) = 3.68778 (26.9557)
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Nlocal: 750 ave 765 max 733 min
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Histogram: 1 0 0 0 1 0 0 1 0 1
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Nghost: 392 ave 402 max 382 min
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Histogram: 1 1 0 0 0 0 0 0 0 2
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Neighs: 3573.5 ave 3638 max 3540 min
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Histogram: 1 2 0 0 0 0 0 0 0 1
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Total # of neighbors = 14294
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Ave neighs/atom = 4.76467
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Neighbor list builds = 1151
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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 = 6.82785 Mbytes
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Step Atoms Trans-KE Rot-KE Volume
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25000 3000 226.05523 23.102252 6600
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26000 3000 107.00196 18.375396 6600
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27000 3000 63.99827 10.996141 6600
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28000 3000 85.164329 8.8173571 6600
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29000 3000 117.92934 7.75666 6600
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30000 3000 163.87863 8.7138337 6600
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31000 3000 233.20236 10.329617 6600
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32000 3000 342.53254 13.898474 6600
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33000 3000 468.44696 15.99158 6600
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34000 3000 621.87103 19.886939 6600
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35000 3000 815.39747 20.705882 6600
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36000 3000 1057.2229 26.571307 6600
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37000 3000 1328.8595 30.123382 6600
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38000 3000 1657.3423 36.114002 6600
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39000 3000 1981.1213 41.318004 6600
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40000 3000 2391.9019 45.046643 6600
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41000 3000 2831.3144 50.549127 6600
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42000 3000 3235.6137 57.512833 6600
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43000 3000 3747.9079 62.890502 6600
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44000 3000 4178.1452 59.476683 6600
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45000 3000 4594.1909 70.420341 6600
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46000 3000 5147.6655 72.299465 6600
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47000 3000 5677.574 81.275593 6600
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48000 3000 6300.6258 81.736559 6600
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49000 3000 6911.4189 87.717341 6600
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50000 3000 7539.698 94.03491 6600
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Loop time of 25.886 on 4 procs for 25000 steps with 3000 atoms
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Pair time (%) = 11.7344 (45.331)
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Neigh time (%) = 0.916894 (3.54205)
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Comm time (%) = 5.79871 (22.401)
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Outpt time (%) = 1.08395 (4.18742)
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Other time (%) = 6.35205 (24.5386)
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Nlocal: 750 ave 761 max 733 min
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Histogram: 1 0 0 0 0 1 0 0 0 2
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Nghost: 409.75 ave 418 max 405 min
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Histogram: 2 0 0 1 0 0 0 0 0 1
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Neighs: 3583 ave 3665 max 3470 min
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Histogram: 1 0 0 0 0 0 2 0 0 1
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Total # of neighbors = 14332
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Ave neighs/atom = 4.77733
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Neighbor list builds = 653
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Dangerous builds = 0
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