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lammps/examples/rigid/in.rigid
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in.rigid
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# Simple rigid body system
units lj
atom_style atomic
pair_style lj/cut 2.5
read_data data.rigid
velocity all create 100.0 4928459
# unconnected bodies
group clump1 id <> 1 9
group clump2 id <> 10 18
group clump3 id <> 19 27
group clump4 id <> 28 36
group clump5 id <> 37 45
group clump6 id <> 46 54
group clump7 id <> 55 63
group clump8 id <> 64 72
group clump9 id <> 73 81
fix 1 all rigid group 9 clump1 clump2 clump3 clump4 clump5 &
clump6 clump7 clump8 clump9
# 1 chain of connected bodies
#group clump1 id <> 1 9
#group clump2 id <> 9 18
#group clump3 id <> 18 27
#group clump4 id <> 27 36
#group clump5 id <> 36 45
#group clump6 id <> 45 54
#group clump7 id <> 54 63
#group clump8 id <> 63 72
#group clump9 id <> 72 81
#fix 1 all poems group clump1 clump2 clump3 clump4 clump5 &
# clump6 clump7 clump8 clump9
# 2 chains of connected bodies
#group clump1 id <> 1 9
#group clump2 id <> 9 18
#group clump3 id <> 18 27
#group clump4 id <> 27 36
#group clump5 id <> 37 45
#group clump6 id <> 45 54
#group clump7 id <> 54 63
#group clump8 id <> 63 72
#group clump9 id <> 72 81
#fix 1 all poems group clump1 clump2 clump3 clump4
#fix 2 all poems group clump5 clump6 clump7 clump8 clump9
neigh_modify exclude group clump1 clump1
neigh_modify exclude group clump2 clump2
neigh_modify exclude group clump3 clump3
neigh_modify exclude group clump4 clump4
neigh_modify exclude group clump5 clump5
neigh_modify exclude group clump6 clump6
neigh_modify exclude group clump7 clump7
neigh_modify exclude group clump8 clump8
neigh_modify exclude group clump9 clump9
thermo 100
#dump 1 all atom 50 dump.rigid
#dump 2 all image 100 image.*.jpg type type &
# axes yes 0.8 0.02 view 60 -30
#dump_modify 2 pad 5
#dump 3 all movie 100 movie.mpg type type &
# axes yes 0.8 0.02 view 60 -30
#dump_modify 3 pad 5
timestep 0.0001
thermo 50
run 10000
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