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lammps/examples/ASPHERE/ellipsoid/log.ellipsoid.mp.1Feb14
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LAMMPS (1 Feb 2014)
# SRD viscosity demo - ellipsoids
units lj
atom_style ellipsoid
atom_modify first big
dimension 2
# create big ellipsoidal particles
lattice sq 0.14
Lattice spacing in x,y,z = 2.67261 2.67261 2.67261
region box block 0 10 0 10 -0.5 0.5
create_box 2 box
Created orthogonal box = (0 0 -1.33631) to (26.7261 26.7261 1.33631)
4 by 2 by 1 MPI processor grid
create_atoms 1 region box
Created 100 atoms
set type 1 mass 1.0
100 settings made for mass
set type 1 shape 3.0 1.0 1.0
100 settings made for shape
group big type 1
100 atoms in group big
set group big quat/random 29898
100 settings made for quat/random
velocity big create 1.44 87287 loop geom
# equilibrate big particles
pair_style gayberne 1.0 3.0 1.0 4.0
pair_coeff 1 1 1.0 1.0 1 1 1 1 1 1
pair_coeff 1 2 1.0 1.0 1 1 1 1 1 1 0.0
pair_coeff 2 2 1.0 1.0 1 1 1 1 1 1 0.0
neighbor 0.3 bin
neigh_modify delay 0 every 1 check yes
fix 1 big nve/asphere
fix 2 all enforce2d
compute rot big temp/asphere
#dump 1 all custom 10 dump.ellipsoid.equil id type x y z # quatw quati quatj quatk
thermo_style custom step temp c_rot epair etotal press
thermo 100
run 1000
Memory usage per processor = 3.31932 Mbytes
Step Temp rot E_pair TotEng Press
0 1.44 0.95677852 2.7038078 4.1294078 10.518912
100 2.5524145 2.801098 -0.37027046 2.1566199 0.84703874
200 2.6266386 2.7938164 -0.35322565 2.2471465 1.004886
300 2.9987557 2.9499545 -0.58917376 2.3795944 0.73081788
400 2.8557446 2.8208128 -0.39904801 2.4281391 0.91808964
500 2.4399047 2.8255746 -0.40056447 2.0149412 1.0538908
600 2.854258 2.9166789 -0.53424483 2.2914706 0.8117508
700 2.9593679 2.8231211 -0.40051714 2.5292571 1.1630889
800 2.7632971 2.9060854 -0.52075339 2.2149107 0.77106814
900 2.9905601 2.8869672 -0.49099457 2.4696599 0.69616725
1000 2.8470146 2.9004954 -0.51281252 2.305732 0.68820531
Loop time of 0.0581853 on 8 procs for 1000 steps with 100 atoms
Pair time (%) = 0.0202803 (34.8546)
Neigh time (%) = 0.000480682 (0.826122)
Comm time (%) = 0.0264942 (45.5342)
Outpt time (%) = 0.000326395 (0.560958)
Other time (%) = 0.0106037 (18.2241)
Nlocal: 12.5 ave 16 max 8 min
Histogram: 1 1 0 0 0 3 0 0 1 2
Nghost: 34.125 ave 42 max 28 min
Histogram: 1 0 2 2 0 1 0 1 0 1
Neighs: 46.125 ave 65 max 20 min
Histogram: 1 0 1 0 1 2 0 0 1 2
Total # of neighbors = 369
Ave neighs/atom = 3.69
Neighbor list builds = 174
Dangerous builds = 0
#undump 1
unfix 1
unfix 2
# add small particles as hi density lattice
region plane block INF INF INF INF -0.001 0.001 units box
lattice sq 120.0
Lattice spacing in x,y,z = 0.0912871 0.0912871 0.0912871
create_atoms 2 region plane
Created 85849 atoms
set type 2 mass 0.01
85849 settings made for mass
group small type 2
85849 atoms in group small
velocity small create 1.0 593849 loop geom
# delete overlaps
# must set 1-2 cutoff to non-zero value
pair_style lj/cut 2.5
pair_coeff 1 1 1.0 1.0
pair_coeff 2 2 0.0 1.0 0.0
pair_coeff 1 2 0.0 1.0 2.0
neigh_modify one 10000
delete_atoms overlap 1.6 small big
Deleted 71060 atoms, new total = 14889
# SRD run
reset_timestep 0
neighbor 0.3 bin
neigh_modify delay 0 every 1 check yes
communicate multi group big vel yes
neigh_modify include big
# no pairwise interactions with small particles
pair_style gayberne 1.0 3.0 1.0 4.0
pair_coeff 1 1 1.0 1.0 1 1 1 1 1 1
pair_coeff 1 2 1.0 1.0 1 1 1 1 1 1 0.0
pair_coeff 2 2 1.0 1.0 1 1 1 1 1 1 0.0
# use fix SRD to push small particles out from inside big ones
# if comment out, big particles won't see SRD particles
timestep 0.0005
fix 1 big nve/asphere
fix 2 small srd 20 big 1.0 0.25 49894 shift yes 54979 collision noslip search 0.2 inside ignore exact no bounce 50
fix 3 small viscosity 20 x y 50
fix 4 all enforce2d
# diagnostics
compute tbig big temp/asphere
variable pebig equal pe*atoms/count(big)
variable ebig equal etotal*atoms/count(big)
thermo_style custom step temp c_rot f_2[9] etotal v_pebig v_ebig press f_2[1] f_2[2] f_2[3] f_2[4] f_2[5] f_2[6] f_2[7] f_2[8] f_2[9] f_2[10] f_2[11] f_2[12]
thermo_modify temp tbig
WARNING: Temperature for thermo pressure is not for group all (../thermo.cpp:439)
thermo 1000
#dump 1 all custom 500 dump.ellipsoid.mp id type x y z # quatw quati quatj quatk
#dump 1 all image 500 image.*.jpg type type zoom 1.6
#dump_modify 1 pad 6 adiam 1 1 adiam 2 0.2
run 50000
SRD info:
SRD/big particles = 14789 100
big particle diameter max/min = 3 1
SRD temperature & lamda = 1 0.1
SRD max distance & max velocity = 0.4 40
SRD grid counts: 107 107 1
SRD grid size: request, actual (xyz) = 0.25, 0.249777 0.249777 2.67261
SRD per actual grid cell = 1.92757
SRD viscosity = 0.688101
big/SRD mass density ratio = 1.37367
# of rescaled SRD velocities = 0
ave/max small velocity = 13.3093 24.3359
ave/max big velocity = 2.08028 5.05671
Memory usage per processor = 10.9077 Mbytes
Step Temp rot 2[9] TotEng pebig ebig Press 2[1] 2[2] 2[3] 2[4] 2[5] 2[6] 2[7] 2[8] 2[9] 2[10] 2[11] 2[12]
0 2.9004954 2.9004954 0 0.025582146 -0.51281252 3.8089257 0.89865242 0 0 0 0 0 0 0 0 0 0 0 0
1000 3.1663129 3.1663129 1.0612788 0.028825811 -0.42593131 4.291875 1.8917479 14347 45 319 0 247730 98040 11449 4128 1.0612788 1160 50 0
2000 2.3854865 2.3854865 1.2711805 0.019550917 -0.6434388 2.910936 1.4342405 15199 41 151 0 526468 98040 11449 4191 1.2711805 2321 50 0
3000 2.6796789 2.6796789 1.2494843 0.023573743 -0.48282696 3.5098946 1.6090734 16441 52 230 0 827117 98040 11449 4203 1.2494843 3659 50 0
4000 2.7945661 2.7945661 1.3021617 0.024256529 -0.5523488 3.6115547 1.2702377 16935 52 474 0 1127934 98040 11449 4215 1.3021617 4966 50 0
5000 2.7061959 2.7061959 1.338483 0.023736966 -0.498035 3.5341969 1.2801942 17578 49 277 0 1435089 98040 11449 4261 1.338483 6351 50 0
6000 3.2698703 3.2698703 1.3285507 0.029840303 -0.42918398 4.4429227 1.4528039 17882 63 228 0 1776449 98040 11449 4252 1.3285507 7935 50 0
7000 3.9340641 3.9340641 1.3823898 0.035368008 -0.59581277 5.2659427 1.1321242 18069 49 462 0 2090062 98040 11449 4265 1.3823898 9343 50 0
8000 3.6037728 3.6037728 1.4150583 0.032400676 -0.54548483 4.8241367 1.2091317 18275 56 369 0 2486575 98040 11449 4229 1.4150583 11121 50 0
9000 105.15275 105.15275 1.3630934 1.0504642 -0.27397996 156.40361 23.278069 18139 107 732 0 2861341 98040 11449 4217 1.3630934 12781 50 0
10000 3.5224307 3.5224307 1.3897056 0.0324883 -0.4112387 4.837183 1.6093705 19100 61 347 0 3248400 98040 11449 4204 1.3897056 14424 50 0
11000 4.1949959 4.1949959 1.421272 0.03853305 -0.51335814 5.7371858 1.3586332 18670 52 590 0 3722041 98040 11449 4263 1.421272 16373 50 0
12000 3.1692742 3.1692742 1.3999982 0.028463927 -0.48422456 4.237994 1.1713046 18787 61 323 0 4117517 98040 11449 4202 1.3999982 18125 50 0
13000 3.5868757 3.5868757 1.3193021 0.032298734 -0.53548629 4.8089585 1.0664078 18572 67 224 0 4417636 98040 11449 4277 1.3193021 19546 50 0
14000 3.708681 3.708681 1.317797 0.033355183 -0.55968141 4.9662533 1.3959088 18284 67 207 0 4675359 98040 11449 4253 1.317797 20631 50 0
15000 3.7410393 3.7410393 1.4017441 0.033377852 -0.60452027 4.9696283 1.2506767 18385 51 189 0 4956150 98040 11449 4275 1.4017441 21763 50 0
16000 5.3298522 5.3298522 1.3456075 0.049673767 -0.54555257 7.3959272 1.841432 18693 63 549 0 5301393 98040 11449 4196 1.3456075 23216 50 0
17000 3.7425275 3.7425275 1.321554 0.036608704 -0.12569607 5.4506699 2.3767421 18377 68 526 0 5637038 98040 11449 4261 1.321554 24829 50 0
18000 6.1904009 6.1904009 1.3905006 0.05857936 -0.50181651 8.7218809 1.7936734 18422 63 522 0 6049781 98040 11449 4280 1.3905006 26646 50 0
19000 3.1770374 3.1770374 1.3694174 0.028096405 -0.55051202 4.1832737 0.98036773 18342 54 343 0 6383253 98040 11449 4239 1.3694174 28038 50 0
20000 3.5793112 3.5793112 1.3160294 0.031413769 -0.65597761 4.677196 1.0713128 18739 60 272 0 6692090 98040 11449 4262 1.3160294 29389 50 0
21000 3.2300481 3.2300481 1.3407923 0.027955254 -0.65051393 4.1622578 0.89783071 18582 55 456 0 6999361 98040 11449 4237 1.3407923 30653 50 0
22000 3.5879886 3.5879886 1.3790201 0.031692391 -0.6274228 4.7186802 0.97752405 18768 63 552 0 7350833 98040 11449 4308 1.3790201 32120 50 0
23000 3.5666316 3.5666316 1.4123826 0.031275136 -0.6577261 4.656555 0.99950405 18864 49 231 0 7741276 98040 11449 4265 1.4123826 33939 50 0
24000 3.7306353 3.7306353 1.3854831 0.032426295 -0.7306956 4.827951 0.93575015 18488 63 552 0 8096740 98040 11449 4238 1.3854831 35503 50 0
25000 4.2971901 4.2971901 1.4207289 0.038358698 -0.69158669 5.7112265 1.0308127 18922 58 430 0 8518804 98040 11449 4254 1.4207289 37429 50 0
26000 9.514164 9.514164 1.4209186 0.09200552 -0.47740255 13.698702 2.4102159 18934 63 570 0 8931705 98040 11449 4233 1.4209186 39132 50 0
27000 3.9153535 3.9153535 1.3814961 0.036650525 -0.37698007 5.4568967 1.4531475 19153 65 553 0 9277922 98040 11449 4299 1.3814961 40660 50 0
28000 3.6560048 3.6560048 1.3520603 0.033100525 -0.51910991 4.9283372 1.3474705 19529 59 447 0 9642607 98040 11449 4278 1.3520603 42335 50 0
29000 14.835118 14.835118 1.3981622 0.14535835 -0.4619207 21.642405 3.6917556 19265 52 102 0 9937354 98040 11449 4224 1.3981622 43664 50 0
30000 5.3595251 5.3595251 1.3636194 0.050893845 -0.40810785 7.5775845 1.7023989 19065 43 131 0 10261222 98040 11449 4170 1.3636194 45193 50 0
31000 5.1821698 5.1821698 1.3180039 0.049074014 -0.41480304 7.30663 1.6943582 19142 58 282 0 10584027 98040 11449 4228 1.3180039 46636 50 0
32000 4.3056534 4.3056534 1.3508467 0.040670309 -0.36002116 6.0554024 1.7875405 19065 36 284 0 10933981 98040 11449 4286 1.3508467 48240 50 0
33000 3.8277999 3.8277999 1.3770405 0.034411971 -0.57982354 5.1235984 1.1046562 18838 71 729 0 11329901 98040 11449 4257 1.3770405 50046 50 0
34000 4.6562056 4.6562056 1.3938501 0.043777831 -0.41966518 6.5180812 1.3815841 18914 61 269 0 11758952 98040 11449 4221 1.3938501 51773 50 0
35000 3.4251492 3.4251492 1.3813031 0.031876928 -0.35731644 4.7461558 1.4152845 18838 60 283 0 12159425 98040 11449 4238 1.3813031 53477 50 0
36000 4.2565688 4.2565688 1.3474871 0.039214915 -0.5035788 5.8387088 1.1222014 18765 56 240 0 12568711 98040 11449 4249 1.3474871 55170 50 0
37000 5.3745505 5.3745505 1.4215553 0.053606226 -0.02664916 7.981431 2.8011643 19103 58 504 0 12941065 98040 11449 4270 1.4215553 56743 50 0
38000 4.0346121 4.0346121 1.4354472 0.036753623 -0.53932498 5.472247 1.1475792 18829 62 623 0 13351480 98040 11449 4226 1.4354472 58443 50 0
39000 4.0471971 4.0471971 1.417888 0.037884509 -0.3896991 5.6406246 1.3824278 19047 70 579 0 13752101 98040 11449 4219 1.417888 60208 50 0
40000 4.1611575 4.1611575 1.3712048 0.039505792 -0.31810741 5.8820173 1.6615204 18811 65 378 0 14143802 98040 11449 4313 1.3712048 61793 50 0
41000 4.852673 4.852673 1.3719985 0.044831688 -0.5554927 6.67499 1.2744313 18899 53 414 0 14505662 98040 11449 4274 1.3719985 63358 50 0
42000 4.8338875 4.8338875 1.3595624 0.045465888 -0.43307636 6.7694161 1.6297026 18708 46 360 0 14839866 98040 11449 4224 1.3595624 64895 50 0
43000 5.0243115 5.0243115 1.4371431 0.047111836 -0.47174292 7.0144813 1.5899963 18704 55 291 0 15195383 98040 11449 4209 1.4371431 66440 50 0
44000 7.2748224 7.2748224 1.3693754 0.069498669 -0.49182853 10.347657 1.9007074 18751 73 423 0 15572639 98040 11449 4253 1.3693754 68148 50 0
45000 5.4888002 5.4888002 1.3501677 0.050885254 -0.60200685 7.5763055 1.2841374 18662 51 314 0 15972088 98040 11449 4227 1.3501677 69998 50 0
46000 3.2144774 3.2144774 1.3342547 0.028194354 -0.59171403 4.1978573 0.9459541 18948 50 534 0 16308430 98040 11449 4253 1.3342547 71549 50 0
47000 4.0640905 4.0640905 1.3473081 0.036715084 -0.58898597 5.4665088 1.2043249 19188 57 236 0 16670321 98040 11449 4239 1.3473081 73216 50 0
48000 3.7843815 3.7843815 1.3413467 0.034360184 -0.52284075 5.1158877 1.1195984 19477 57 283 0 17000588 98040 11449 4307 1.3413467 74662 50 0
49000 4.3042567 4.3042567 1.354248 0.039635615 -0.51199566 5.9013468 1.410884 19628 68 456 0 17319627 98040 11449 4277 1.354248 75983 50 0
50000 4.015575 4.015575 1.3058373 0.036258162 -0.58472888 5.3984778 0.84500807 19257 63 416 0 17675269 98040 11449 4254 1.3058373 77468 50 0
Loop time of 11.9502 on 8 procs for 50000 steps with 14889 atoms
Pair time (%) = 1.09132 (9.13222)
Neigh time (%) = 0.959464 (8.02883)
Comm time (%) = 1.19057 (9.96277)
Outpt time (%) = 0.00310364 (0.0259714)
Other time (%) = 8.70577 (72.8502)
Nlocal: 1861.12 ave 1979 max 1606 min
Histogram: 1 0 0 0 1 1 1 0 0 4
Nghost: 35 ave 39 max 32 min
Histogram: 1 0 2 0 3 1 0 0 0 1
Neighs: 46 ave 61 max 31 min
Histogram: 1 1 0 1 1 0 2 0 1 1
Total # of neighbors = 368
Ave neighs/atom = 0.0247162
Neighbor list builds = 2624
Dangerous builds = 0
Please see the log.cite file for references relevant to this simulation
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