142 lines
5.5 KiB
Plaintext
142 lines
5.5 KiB
Plaintext
LAMMPS (5 Jun 2010-ICMS)
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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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2 by 2 by 1 processor grid
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using 1 OpenMP thread(s) per MPI task
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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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run 25000
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Memory usage per processor = 9.02398 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 1724.8627 47.36161 6600
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5000 804 1599.9516 63.808734 6600
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6000 804 1359.1774 63.495338 6600
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7000 1206 1532.7896 68.602762 6600
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8000 1206 1403.019 62.696462 6600
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9000 1206 1246.5753 52.231964 6600
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10000 1608 1384.5899 51.460162 6600
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11000 1608 1242.4905 50.743602 6600
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12000 1608 1198.1344 42.09716 6600
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13000 2010 1320.2254 49.212225 6600
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14000 2010 1168.1914 43.237369 6600
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15000 2010 1000.9246 40.611044 6600
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16000 2412 1042.1809 42.820883 6600
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17000 2412 1017.7603 37.930359 6600
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18000 2412 917.13682 36.262539 6600
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19000 2814 1006.7645 37.65608 6600
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20000 2814 939.29053 42.983872 6600
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21000 2814 767.83153 42.743923 6600
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22000 2814 519.02126 40.424847 6600
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23000 3000 431.76254 31.764353 6600
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24000 3000 368.73265 25.562394 6600
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25000 3000 213.32319 26.876083 6600
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Loop time of 3.34216 on 4 procs / 1 threads for 25000 steps with 3000 atoms
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Pair time (%) = 1.5652 (46.8321)
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Neigh time (%) = 0.457273 (13.682)
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Comm time (%) = 0.437542 (13.0916)
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Outpt time (%) = 0.000629485 (0.0188347)
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Other time (%) = 0.88151 (26.3755)
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Nlocal: 750 ave 768 max 738 min
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Histogram: 1 0 1 1 0 0 0 0 0 1
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Nghost: 391.5 ave 400 max 380 min
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Histogram: 1 0 0 0 1 0 0 0 1 1
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Neighs: 3589 ave 3630 max 3557 min
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Histogram: 1 1 0 0 0 1 0 0 0 1
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Total # of neighbors = 14356
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Ave neighs/atom = 4.78533
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Neighbor list builds = 1151
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Dangerous builds = 0
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dump id all xyz 1000 pour.xyz
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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 = 9.72651 Mbytes
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Step Atoms KinEng 1 Volume
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25000 3000 213.32319 26.876083 6600
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26000 3000 110.32635 17.284813 6600
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27000 3000 106.97004 12.086035 6600
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28000 3000 194.79068 12.202064 6600
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29000 3000 316.45445 14.340477 6600
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30000 3000 486.66006 19.245664 6600
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31000 3000 720.5346 24.86945 6600
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32000 3000 1020.0089 29.912815 6600
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33000 3000 1386.0874 37.35596 6600
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34000 3000 1844.1066 44.113175 6600
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35000 3000 2338.6834 49.917072 6600
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36000 3000 2965.9169 58.791895 6600
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37000 3000 3633.9439 69.178865 6600
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38000 3000 4381.169 77.125516 6600
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39000 3000 5200.4428 85.112819 6600
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40000 3000 5981.1243 93.916094 6600
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41000 3000 6913.1321 111.52461 6600
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42000 3000 7891.6856 126.41588 6600
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43000 3000 9015.9183 132.79203 6600
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44000 3000 10114.77 135.83655 6600
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45000 3000 11186.13 161.2117 6600
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46000 3000 12587.579 171.77876 6600
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47000 3000 13907.677 191.12709 6600
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48000 3000 15144.281 182.89003 6600
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49000 3000 16407.271 207.27392 6600
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50000 3000 17942.662 213.26893 6600
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Loop time of 6.52165 on 4 procs / 1 threads for 25000 steps with 3000 atoms
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Pair time (%) = 3.47373 (53.2646)
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Neigh time (%) = 0.673379 (10.3253)
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Comm time (%) = 0.719321 (11.0297)
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Outpt time (%) = 0.190085 (2.91468)
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Other time (%) = 1.46513 (22.4657)
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Nlocal: 750 ave 761 max 734 min
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Histogram: 1 0 0 0 0 0 1 1 0 1
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Nghost: 400.25 ave 411 max 386 min
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Histogram: 1 0 0 0 0 0 2 0 0 1
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Neighs: 3700.75 ave 3759 max 3620 min
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Histogram: 1 0 0 1 0 0 0 0 0 2
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Total # of neighbors = 14803
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Ave neighs/atom = 4.93433
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Neighbor list builds = 825
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Dangerous builds = 0
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