forked from lijiext/lammps
137 lines
5.3 KiB
Groff
137 lines
5.3 KiB
Groff
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LAMMPS (5 Oct 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 orthogonal 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 0.5 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 1.0 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 1000 dump.pour
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run 25000
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Memory usage per processor = 0.402763 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 1725.4319 47.250762 6600
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5000 804 1605.2015 60.084404 6600
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6000 804 1371.3425 69.247899 6600
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7000 1206 1524.3574 74.071529 6600
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8000 1206 1418.8999 60.727347 6600
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9000 1206 1258.0064 51.943448 6600
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10000 1608 1391.6571 50.505619 6600
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11000 1608 1232.8265 50.877674 6600
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12000 1608 1195.2804 46.358334 6600
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13000 2010 1315.8232 49.633638 6600
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14000 2010 1171.0007 43.965336 6600
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15000 2010 984.42685 42.714353 6600
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16000 2412 1028.8418 41.732668 6600
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17000 2412 1016.9257 44.039977 6600
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18000 2412 911.33181 36.804113 6600
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19000 2814 1002.0117 38.864202 6600
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20000 2814 960.38825 45.167894 6600
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21000 2814 747.55191 45.970768 6600
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22000 2814 523.67155 43.946925 6600
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23000 3000 438.80433 35.866677 6600
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24000 3000 350.60693 23.380222 6600
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25000 3000 232.00186 22.76523 6600
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Loop time of 12.1254 on 4 procs for 25000 steps with 3000 atoms
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Pair time (%) = 3.55275 (29.3002)
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Neigh time (%) = 0.425442 (3.50869)
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Comm time (%) = 4.28617 (35.3488)
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Outpt time (%) = 0.0881629 (0.727095)
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Other time (%) = 3.77284 (31.1152)
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Nlocal: 750 ave 763 max 730 min
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Histogram: 1 0 0 0 1 0 0 0 0 2
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Nghost: 393.25 ave 404 max 387 min
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Histogram: 1 0 2 0 0 0 0 0 0 1
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Neighs: 3584.25 ave 3654 max 3500 min
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Histogram: 1 0 0 0 1 0 0 1 0 1
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Total # of neighbors = 14337
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Ave neighs/atom = 4.779
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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 1.0 chute 26.0
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run 25000
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Memory usage per processor = 7.16248 Mbytes
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Step Atoms KinEng RotKEgrn Volume
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25000 3000 232.00186 22.76523 6600
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26000 3000 106.03482 19.110968 6600
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27000 3000 117.35702 11.863221 6600
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28000 3000 210.16302 11.734546 6600
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29000 3000 364.51031 13.978019 6600
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30000 3000 615.67035 19.096214 6600
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31000 3000 903.47015 29.320372 6600
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32000 3000 1251.3923 32.674763 6600
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33000 3000 1705.6441 43.39215 6600
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34000 3000 2196.1688 50.259234 6600
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35000 3000 2774.3046 56.750935 6600
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36000 3000 3390.0639 66.826889 6600
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37000 3000 4108.0306 80.340967 6600
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38000 3000 4931.8421 82.362753 6600
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39000 3000 5798.3775 99.330342 6600
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40000 3000 6729.1245 110.92274 6600
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41000 3000 7780.6383 123.43956 6600
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42000 3000 8927.2592 135.00244 6600
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43000 3000 10032.341 144.35759 6600
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44000 3000 11220.512 163.73946 6600
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45000 3000 12527.526 182.56044 6600
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46000 3000 14021.788 208.42883 6600
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47000 3000 15724.627 221.7706 6600
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48000 3000 17394.628 231.95039 6600
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49000 3000 19056.668 255.27889 6600
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50000 3000 20908.007 287.26263 6600
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Loop time of 18.123 on 4 procs for 25000 steps with 3000 atoms
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Pair time (%) = 7.73321 (42.6708)
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Neigh time (%) = 0.679242 (3.74796)
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Comm time (%) = 4.89283 (26.998)
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Outpt time (%) = 0.131401 (0.72505)
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Other time (%) = 4.68628 (25.8583)
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Nlocal: 750 ave 760 max 743 min
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Histogram: 1 0 1 1 0 0 0 0 0 1
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Nghost: 406 ave 408 max 402 min
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Histogram: 1 0 0 0 0 0 1 0 0 2
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Neighs: 3714 ave 3765 max 3659 min
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Histogram: 1 0 0 0 1 1 0 0 0 1
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Total # of neighbors = 14856
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Ave neighs/atom = 4.952
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Neighbor list builds = 850
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Dangerous builds = 0
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