mirror of https://github.com/lammps/lammps.git
141 lines
5.4 KiB
Groff
141 lines
5.4 KiB
Groff
LAMMPS (27 Mar 2011)
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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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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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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/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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run 25000
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Memory usage per processor = 9.53798 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 1724.8532 47.325647 6600
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5000 804 1598.6681 64.779741 6600
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6000 804 1364.8231 61.75911 6600
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7000 1206 1519.7287 69.028648 6600
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8000 1206 1409.6162 62.604955 6600
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9000 1206 1243.5289 52.989305 6600
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10000 1608 1403.0711 56.9465 6600
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11000 1608 1225.8111 52.938639 6600
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12000 1608 1180.1935 40.544973 6600
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13000 2010 1328.8958 49.216222 6600
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14000 2010 1178.4104 44.431482 6600
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15000 2010 998.18775 45.388975 6600
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16000 2412 1050.7228 44.704814 6600
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17000 2412 1025.5915 40.030825 6600
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18000 2412 919.51551 36.650545 6600
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19000 2814 1006.5829 41.592546 6600
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20000 2814 964.34863 40.248622 6600
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21000 2814 755.00069 47.423444 6600
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22000 2814 516.03089 37.374261 6600
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23000 3000 412.07349 38.529474 6600
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24000 3000 352.98971 25.413823 6600
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25000 3000 224.4892 26.293648 6600
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Loop time of 16.2706 on 1 procs for 25000 steps with 3000 atoms
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Pair time (%) = 9.93414 (61.0559)
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Neigh time (%) = 1.52613 (9.37968)
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Comm time (%) = 0.33667 (2.06919)
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Outpt time (%) = 0.0725436 (0.445858)
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Other time (%) = 4.40109 (27.0494)
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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: 13593 ave 13593 max 13593 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Total # of neighbors = 13593
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Ave neighs/atom = 4.531
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Neighbor list builds = 1154
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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 = 10.3382 Mbytes
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Step Atoms KinEng 1 Volume
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25000 3000 224.4892 26.293648 6600
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26000 3000 109.35155 19.099437 6600
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27000 3000 106.58675 12.27262 6600
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28000 3000 183.89427 10.880842 6600
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29000 3000 292.94648 11.873629 6600
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30000 3000 464.71914 16.448049 6600
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31000 3000 686.57043 21.625578 6600
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32000 3000 928.71115 29.23142 6600
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33000 3000 1306.1411 35.231678 6600
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34000 3000 1749.5669 40.390136 6600
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35000 3000 2276.5984 52.718937 6600
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36000 3000 2903.9133 59.451797 6600
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37000 3000 3546.0796 61.447694 6600
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38000 3000 4236.2302 80.403853 6600
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39000 3000 5094.5896 91.929565 6600
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40000 3000 5945.8279 104.35396 6600
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41000 3000 6966.1795 111.16923 6600
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42000 3000 8070.0072 125.57778 6600
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43000 3000 9283.327 145.20852 6600
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44000 3000 10603.168 165.13356 6600
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45000 3000 11844.495 162.80115 6600
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46000 3000 13223.004 179.54672 6600
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47000 3000 14640.883 189.5725 6600
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48000 3000 16191.178 222.62089 6600
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49000 3000 17788.584 221.35968 6600
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50000 3000 19393.123 255.33084 6600
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Loop time of 31.9877 on 1 procs for 25000 steps with 3000 atoms
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Pair time (%) = 21.7568 (68.0161)
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Neigh time (%) = 2.29067 (7.1611)
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Comm time (%) = 0.723586 (2.26207)
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Outpt time (%) = 0.118071 (0.369114)
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Other time (%) = 7.09858 (22.1916)
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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: 763 ave 763 max 763 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Neighs: 14168 ave 14168 max 14168 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Total # of neighbors = 14168
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Ave neighs/atom = 4.72267
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Neighbor list builds = 807
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Dangerous builds = 0
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