forked from lijiext/lammps
140 lines
5.4 KiB
Groff
140 lines
5.4 KiB
Groff
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LAMMPS (7 Jul 2009)
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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 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 = 3.27422 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 52.989304 6600
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10000 1608 1403.0715 56.947496 6600
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11000 1608 1225.5051 53.148098 6600
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12000 1608 1177.2277 39.979685 6600
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13000 2010 1311.8646 51.558467 6600
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14000 2010 1185.4133 41.378592 6600
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15000 2010 1011.191 43.692162 6600
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16000 2412 1032.6584 39.553223 6600
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17000 2412 1033.4355 38.945322 6600
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18000 2412 901.12007 39.188057 6600
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19000 2814 1011.9993 39.947989 6600
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20000 2814 947.9512 42.721247 6600
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21000 2814 765.21528 44.2837 6600
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22000 2814 525.72722 40.447908 6600
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23000 3000 441.40926 35.36385 6600
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24000 3000 364.74917 21.143658 6600
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25000 3000 226.43958 23.004948 6600
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Loop time of 17.1158 on 1 procs for 25000 steps with 3000 atoms
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Pair time (%) = 10.4587 (61.1052)
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Neigh time (%) = 1.74633 (10.203)
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Comm time (%) = 0.360057 (2.10365)
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Outpt time (%) = 0.0723612 (0.422773)
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Other time (%) = 4.47842 (26.1654)
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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: 13621 ave 13621 max 13621 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Total # of neighbors = 13621
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Ave neighs/atom = 4.54033
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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 = 9.91158 Mbytes
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Step Atoms KinEng 1 Volume
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25000 3000 226.43958 23.004948 6600
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26000 3000 103.0702 17.682073 6600
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27000 3000 95.394405 11.949986 6600
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28000 3000 172.26025 12.011498 6600
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29000 3000 297.64398 13.417128 6600
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30000 3000 457.07299 16.932675 6600
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31000 3000 664.70728 23.266708 6600
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32000 3000 948.6645 30.928321 6600
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33000 3000 1273.5422 34.429485 6600
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34000 3000 1646.8998 41.345835 6600
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35000 3000 2104.7359 44.292196 6600
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36000 3000 2626.0464 54.944189 6600
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37000 3000 3249.526 69.167279 6600
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38000 3000 3952.1184 71.112428 6600
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39000 3000 4701.9123 87.404535 6600
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40000 3000 5466.3798 94.072063 6600
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41000 3000 6287.0047 104.38137 6600
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42000 3000 7265.3533 114.14633 6600
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43000 3000 8282.7127 127.70737 6600
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44000 3000 9296.7101 140.77118 6600
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45000 3000 10314.529 141.66143 6600
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46000 3000 11565.234 161.47359 6600
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47000 3000 12741.958 171.18404 6600
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48000 3000 14065.725 190.17293 6600
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49000 3000 15484.049 207.26412 6600
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50000 3000 16936.074 211.47138 6600
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Loop time of 33.3899 on 1 procs for 25000 steps with 3000 atoms
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Pair time (%) = 22.696 (67.9725)
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Neigh time (%) = 2.63325 (7.88636)
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Comm time (%) = 0.77809 (2.33031)
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Outpt time (%) = 0.118134 (0.3538)
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Other time (%) = 7.16447 (21.457)
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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: 760 ave 760 max 760 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Neighs: 13990 ave 13990 max 13990 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Total # of neighbors = 13990
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Ave neighs/atom = 4.66333
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Neighbor list builds = 802
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Dangerous builds = 0
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