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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1 by 1 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 = 9.46169 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 62.604936 6600
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9000 1206 1243.5299 53.012812 6600
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10000 1608 1400.2632 57.300035 6600
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11000 1608 1226.4327 53.185401 6600
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12000 1608 1190.754 41.207269 6600
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13000 2010 1309.6301 51.508727 6600
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14000 2010 1182.74 46.857423 6600
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15000 2010 985.17177 43.141534 6600
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16000 2412 1041.1301 47.314349 6600
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17000 2412 1038.3663 39.508439 6600
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18000 2412 916.06571 39.312699 6600
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19000 2814 1021.9901 42.073133 6600
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20000 2814 959.466 41.811414 6600
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21000 2814 761.2927 41.364383 6600
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22000 2814 521.07124 40.192029 6600
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23000 3000 423.49186 37.34074 6600
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24000 3000 362.28297 22.586628 6600
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25000 3000 223.45694 22.976343 6600
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Loop time of 9.28813 on 1 procs for 25000 steps with 3000 atoms
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Pair time (%) = 5.36181 (57.7276)
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Neigh time (%) = 1.04765 (11.2794)
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Comm time (%) = 0.25077 (2.6999)
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Outpt time (%) = 0.000460148 (0.00495415)
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Other time (%) = 2.62743 (28.2881)
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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: 669 ave 669 max 669 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Neighs: 13650 ave 13650 max 13650 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Total # of neighbors = 13650
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Ave neighs/atom = 4.55
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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 = 10.2619 Mbytes
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Step Atoms KinEng 1 Volume
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25000 3000 223.45694 22.976343 6600
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26000 3000 113.473 17.666374 6600
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27000 3000 102.76936 12.540567 6600
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28000 3000 179.07068 11.501122 6600
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29000 3000 289.11251 14.028808 6600
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30000 3000 461.92265 17.681677 6600
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31000 3000 710.67032 23.209353 6600
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32000 3000 991.22981 30.179598 6600
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33000 3000 1366.0205 36.321028 6600
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34000 3000 1817.0366 45.963988 6600
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35000 3000 2329.5052 51.957397 6600
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36000 3000 2938.7862 59.654677 6600
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37000 3000 3662.828 70.399596 6600
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38000 3000 4375.2295 78.906063 6600
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39000 3000 5250.4031 92.018452 6600
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40000 3000 6032.6969 100.23325 6600
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41000 3000 7053.8661 115.73204 6600
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42000 3000 8063.1636 122.38643 6600
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43000 3000 9181.8348 143.39138 6600
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44000 3000 10270.31 149.34715 6600
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45000 3000 11434.53 161.47217 6600
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46000 3000 12731.277 171.19811 6600
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47000 3000 13938.907 170.91903 6600
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48000 3000 15244.449 192.6018 6600
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49000 3000 16627.76 195.3851 6600
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50000 3000 17863.962 213.64088 6600
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Loop time of 18.2656 on 1 procs for 25000 steps with 3000 atoms
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Pair time (%) = 11.864 (64.9527)
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Neigh time (%) = 1.57208 (8.60681)
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Comm time (%) = 0.539768 (2.95511)
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Outpt time (%) = 0.000703335 (0.0038506)
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Other time (%) = 4.28904 (23.4816)
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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: 755 ave 755 max 755 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Neighs: 13875 ave 13875 max 13875 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Total # of neighbors = 13875
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Ave neighs/atom = 4.625
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Neighbor list builds = 803
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Dangerous builds = 0
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