lammps/examples/granular/log.29Mar19.pour.flatwall.g...

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4.8 KiB
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LAMMPS (29 Mar 2019)
OMP_NUM_THREADS environment is not set. Defaulting to 1 thread. (../comm.cpp:88)
using 1 OpenMP thread(s) per MPI task
# pour two types of particles (cohesive and non-cohesive) on flat wall
variable name string pour_two_types
atom_style sphere
units lj
###############################################
# Geometry-related parameters
###############################################
variable boxx equal 20
variable boxy equal 20
variable boxz equal 30
variable xc1 equal 0.3*${boxx}
variable xc1 equal 0.3*20
variable xc2 equal 0.7*${boxx}
variable xc2 equal 0.7*20
variable yc equal 0.5*${boxy}
variable yc equal 0.5*20
###############################################
# Particle-related parameters
###############################################
variable rlo equal 0.25
variable rhi equal 0.5
variable dlo equal 2.0*${rlo}
variable dlo equal 2.0*0.25
variable dhi equal 2.0*${rhi}
variable dhi equal 2.0*0.5
variable dens equal 1.0
variable skin equal 0.3*${rhi}
variable skin equal 0.3*0.5
#############
processors * * 1
region boxreg block 0 ${boxx} 0 ${boxy} 0 ${boxz}
region boxreg block 0 20 0 ${boxy} 0 ${boxz}
region boxreg block 0 20 0 20 0 ${boxz}
region boxreg block 0 20 0 20 0 30
create_box 2 boxreg
Created orthogonal box = (0 0 0) to (20 20 30)
1 by 1 by 1 MPI processor grid
change_box all boundary p p f
comm_modify vel yes
region insreg1 cylinder z ${xc1} ${yc} 5 15 ${boxz}
region insreg1 cylinder z 6 ${yc} 5 15 ${boxz}
region insreg1 cylinder z 6 10 5 15 ${boxz}
region insreg1 cylinder z 6 10 5 15 30
region insreg2 cylinder z ${xc2} ${yc} 5 15 ${boxz}
region insreg2 cylinder z 14 ${yc} 5 15 ${boxz}
region insreg2 cylinder z 14 10 5 15 ${boxz}
region insreg2 cylinder z 14 10 5 15 30
fix 1 all nve/sphere
fix grav all gravity 10.0 vector 0 0 -1
fix ins1 all pour 1500 1 3123 region insreg1 diam range ${dlo} ${dhi} dens ${dens} ${dens}
fix ins1 all pour 1500 1 3123 region insreg1 diam range 0.5 ${dhi} dens ${dens} ${dens}
fix ins1 all pour 1500 1 3123 region insreg1 diam range 0.5 1 dens ${dens} ${dens}
fix ins1 all pour 1500 1 3123 region insreg1 diam range 0.5 1 dens 1 ${dens}
fix ins1 all pour 1500 1 3123 region insreg1 diam range 0.5 1 dens 1 1
Particle insertion: 562 every 346 steps, 1500 by step 693
fix ins2 all pour 1500 2 3123 region insreg2 diam range ${dlo} ${dhi} dens ${dens} ${dens}
fix ins2 all pour 1500 2 3123 region insreg2 diam range 0.5 ${dhi} dens ${dens} ${dens}
fix ins2 all pour 1500 2 3123 region insreg2 diam range 0.5 1 dens ${dens} ${dens}
fix ins2 all pour 1500 2 3123 region insreg2 diam range 0.5 1 dens 1 ${dens}
fix ins2 all pour 1500 2 3123 region insreg2 diam range 0.5 1 dens 1 1
Particle insertion: 562 every 346 steps, 1500 by step 693
comm_modify vel yes
neighbor ${skin} bin
neighbor 0.15 bin
neigh_modify delay 0 every 1 check yes
pair_style granular
pair_coeff 1 * jkr 1000.0 50.0 0.3 10 tangential mindlin 800.0 1.0 0.5 rolling sds 500.0 200.0 0.5 twisting marshall
pair_coeff 2 2 hertz 200.0 20.0 tangential linear_history 300.0 1.0 0.1 rolling sds 200.0 100.0 0.1 twisting marshall
fix 3 all wall/gran granular hertz/material 1e5 1e3 0.3 tangential mindlin NULL 1.0 0.5 zplane 0 NULL
thermo_style custom step cpu atoms ke
thermo_modify lost warn
thermo 100
timestep 0.001
#dump 1 all custom 100 ${name}.dump id type radius mass x y z
run 5000
Neighbor list info ...
update every 1 steps, delay 0 steps, check yes
max neighbors/atom: 2000, page size: 100000
master list distance cutoff = 1.15
ghost atom cutoff = 1.15
binsize = 0.575, bins = 35 35 53
1 neighbor lists, perpetual/occasional/extra = 1 0 0
(1) pair granular, perpetual
attributes: half, newton on, size, history
pair build: half/size/bin/newton
stencil: half/bin/3d/newton
bin: standard
Per MPI rank memory allocation (min/avg/max) = 12.22 | 12.22 | 12.22 Mbytes
Step CPU Atoms KinEng
0 0 0 -0
100 3.8153191 855 -0
200 4.195287 855 -0
300 4.5890362 855 -0
400 10.636087 1500 -0
500 11.306909 1500 -0
600 11.968198 1500 -0
700 22.631892 2288 -0
800 23.711387 2288 -0
900 24.754344 2288 -0
1000 25.811778 2288 -0
1100 35.368869 2845 -0
1200 37.149843 2845 -0
1300 39.026458 2845 -0
1400 41.757583 3000 -0
1500 45.155503 3000 -0
1600 48.570241 3000 -0
1700 52.839322 3000 -0
1800 59.772697 3000 -0
1900 69.493305 3000 -0
2000 114.61886 3000 -0
2100 152.89232 3000 -0