mirror of
https://github.com/ParticulateFlow/CFDEMcoupling-PFM.git
synced 2025-12-08 06:37:44 +00:00
clean up LIGGGHTS scripts
This commit is contained in:
@ -1,65 +1,64 @@
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# Pour granular particles into chute container, then induce flow
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# Fill granular particles into a cylinder
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echo both
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echo both
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atom_style granular
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atom_style granular
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atom_modify map array
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atom_modify map array
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communicate single vel yes
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communicate single vel yes
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boundary m m m
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boundary m m m
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newton off
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newton off
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units si
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units si
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region reg block -0.015 0.015 -0.015 0.015 -0.001 0.0554 units box
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region reg block -0.015 0.015 -0.015 0.015 -0.001 0.0554 units box
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create_box 1 reg
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create_box 1 reg
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neighbor 0.001 bin
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neighbor 0.001 bin
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neigh_modify delay 0
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neigh_modify delay 0
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#Material properties required for new pair styles
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#material properties required for granular pair styles
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fix m1 all property/global youngsModulus peratomtype 5.e6
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fix m1 all property/global youngsModulus peratomtype 5.e6
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fix m2 all property/global poissonsRatio peratomtype 0.45
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fix m2 all property/global poissonsRatio peratomtype 0.45
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fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
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fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
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fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
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fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
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#pair style
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#pair style
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pair_style gran model hertz tangential history
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pair_style gran model hertz tangential history
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pair_coeff * *
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pair_coeff * *
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#timestep, gravity
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#timestep, gravity
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timestep 0.00001
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timestep 0.00001
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fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
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fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
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#walls
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#walls
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fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
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fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
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fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
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fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
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fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.0138 0. 0.
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fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.0138 0. 0.
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#cfd coupling
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#cfd coupling
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#fix cfd all couple/cfd
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#fix cfd all couple/cfd
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#particle insertion
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#particle insertion
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region bc cylinder z 0.0 0.0 0.012 0.02 0.03 units box
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region bc cylinder z 0.0 0.0 0.012 0.02 0.03 units box
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fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 200 radius constant 0.001
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fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 200 radius constant 0.001
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fix pdd1 all particledistribution/discrete 1. 1 pts1 1.0
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fix pdd1 all particledistribution/discrete 1. 1 pts1 1.0
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fix ins all insert/pack seed 100001 distributiontemplate pdd1 vel constant 0. 0. -1. insert_every once overlapcheck yes all_in yes particles_in_region 1000 region bc
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fix ins all insert/pack seed 100001 distributiontemplate pdd1 vel constant 0. 0. -1. insert_every once overlapcheck yes all_in yes particles_in_region 1000 region bc
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#apply nve integration to all particles that are inserted as single particles
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#apply nve integration to all particles that are inserted as single particles
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fix integr all nve/sphere
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fix integr all nve/sphere
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#screen output
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#screen output
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compute 1 all erotate/sphere
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compute rke all erotate/sphere
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thermo_style custom step atoms ke c_1 vol
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thermo_style custom step atoms ke c_rke vol
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thermo 1000
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thermo 1000
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thermo_modify lost ignore norm no
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thermo_modify lost ignore norm no
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compute_modify thermo_temp dynamic yes
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compute_modify thermo_temp dynamic yes
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#insert the first particles so that dump is not empty
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#insert the first particles so that dump is not empty
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run 1
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run 1
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dump dmp all custom 1000 post/dump.liggghts_init id type type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
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dump dmp all custom 1000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
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run 3000 upto
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run 3000 upto
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#write_restart liggghts.restart
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@ -19,8 +19,7 @@ neighbor 0.3 bin
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neigh_modify delay 0 binsize 0.01
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neigh_modify delay 0 binsize 0.01
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# Material properties required for new pair styles
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# Material properties required for granular pair styles
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fix m1 all property/global youngsModulus peratomtype 5.e7
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fix m1 all property/global youngsModulus peratomtype 5.e7
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fix m2 all property/global poissonsRatio peratomtype 0.45
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fix m2 all property/global poissonsRatio peratomtype 0.45
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fix m3 all property/global coefficientRestitution peratomtypepair 1 0.9
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fix m3 all property/global coefficientRestitution peratomtypepair 1 0.9
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@ -49,8 +48,8 @@ fix cfd2 all couple/cfd/force
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# create single partciles
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# create single partciles
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create_atoms 1 single .5 .5 3.5 units box
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create_atoms 1 single 0.5 0.5 3.5 units box
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create_atoms 1 single .5 .5 3.16 units box
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create_atoms 1 single 0.5 0.5 3.16 units box
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set atom 1 diameter 0.167 density 1.5 vx 0 vy 0 vz 0
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set atom 1 diameter 0.167 density 1.5 vx 0 vy 0 vz 0
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set atom 2 diameter 0.167 density 1.5 vx 0 vy 0 vz 0
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set atom 2 diameter 0.167 density 1.5 vx 0 vy 0 vz 0
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@ -85,7 +84,7 @@ thermo_modify lost ignore norm no
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compute_modify thermo_temp dynamic yes
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compute_modify thermo_temp dynamic yes
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# insert the first particles so that dump is not empty
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# insert the first particles so that dump is not empty
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dump dmp all custom 100 ../DEM/post/dump.liggghts_run id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
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dump dmp all custom 100 ../DEM/post/dump.liggghts_run id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
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#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
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#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
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#node : f_couple_cfd[6]
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#node : f_couple_cfd[6]
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@ -13,67 +13,67 @@ variable nPorg equal 71000
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variable nPscal equal ${nPorg}/(${cg}*${cg}*${cg})
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variable nPscal equal ${nPorg}/(${cg}*${cg}*${cg})
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#######################################################
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#######################################################
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atom_style granular
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atom_style granular
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atom_modify map array
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atom_modify map array
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communicate single vel yes
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communicate single vel yes
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coarsegraining ${cg}
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coarsegraining ${cg}
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boundary m m m
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boundary m m m
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newton off
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newton off
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units si
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units si
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processors 2 2 1
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processors 2 2 1
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region reg block -0.015 0.015 -0.015 0.015 -0.001 0.0554 units box
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region reg block -0.015 0.015 -0.015 0.015 -0.001 0.0554 units box
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create_box 1 reg
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create_box 1 reg
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neighbor 0.001 bin
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neighbor 0.001 bin
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neigh_modify delay 0
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neigh_modify delay 0
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#Material properties required for new pair styles
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#Material properties required for granular pair styles
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fix m1 all property/global youngsModulus peratomtype 5.e6
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fix m1 all property/global youngsModulus peratomtype 5.e6
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fix m2 all property/global poissonsRatio peratomtype 0.45
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fix m2 all property/global poissonsRatio peratomtype 0.45
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fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
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fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
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fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
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fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
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#pair style
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#pair style
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pair_style gran model hertz tangential history #Hertzian without cohesion
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pair_style gran model hertz tangential history
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pair_coeff * *
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pair_coeff * *
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#timestep, gravity
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#timestep, gravity
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timestep 0.00001
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timestep 0.00001
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fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
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fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
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#walls
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#walls
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fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
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fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
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fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
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fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
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fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
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fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
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#particle distributions and insertion
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#particle distributions and insertion
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region bc cylinder z 0.0 0.0 0.012 0. 0.055 units box
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region bc cylinder z 0.0 0.0 0.012 0. 0.055 units box
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fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 7000 radius constant ${r0}
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fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 7000 radius constant ${r0}
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fix pdd1 all particledistribution/discrete 1. 1 pts1 1.0
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fix pdd1 all particledistribution/discrete 1 1 pts1 1.0
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fix ins all insert/pack seed 100001 distributiontemplate pdd1 vel constant 0. 0. -1. insert_every once overlapcheck yes all_in yes particles_in_region ${nPscal} region bc
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fix ins all insert/pack seed 100001 distributiontemplate pdd1 vel constant 0. 0. -1. insert_every once overlapcheck yes all_in yes particles_in_region ${nPscal} region bc
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#apply nve integration to all particles that are inserted as single particles
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#apply nve integration to all particles that are inserted as single particles
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fix integr all nve/sphere
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fix integr all nve/sphere
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#screen output
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#screen output
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compute 1 all erotate/sphere
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compute rke all erotate/sphere
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thermo_style custom step atoms ke c_1 vol
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thermo_style custom step atoms ke c_rke vol
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thermo 1000
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thermo 1000
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thermo_modify lost ignore norm no
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thermo_modify lost ignore norm no
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compute_modify thermo_temp dynamic yes
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compute_modify thermo_temp dynamic yes
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#insert the first particles so that dump is not empty
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#insert the first particles so that dump is not empty
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run 1
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run 1
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dump dmp all custom 5000 post/dump.liggghts_init id type type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
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dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
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#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
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#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
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#node : f_couple_cfd[6]
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#node : f_couple_cfd[6]
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#cell id : f_couple_cfd[7]
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#cell id : f_couple_cfd[7]
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run 10000 upto
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run 10000 upto
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write_restart ./post/restart/liggghts.restart_coarseGraining_${cg}
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write_restart ./post/restart/liggghts.restart_coarseGraining_${cg}
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@ -14,70 +14,69 @@ variable nPorg equal 71000
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variable nPscal equal ${nPorg}/(${cg}*${cg}*${cg})
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variable nPscal equal ${nPorg}/(${cg}*${cg}*${cg})
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#######################################################
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#######################################################
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atom_style granular
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atom_style granular
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atom_modify map array
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atom_modify map array
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communicate single vel yes
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communicate single vel yes
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coarsegraining ${cg}
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coarsegraining ${cg}
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boundary m m m
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boundary m m m
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newton off
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newton off
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units si
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units si
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processors 2 2 1
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processors 2 2 1
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#read the restart file
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#read the restart file
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read_restart ../DEM/post/restart/liggghts.restart_coarseGraining_${cg}
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read_restart ../DEM/post/restart/liggghts.restart_coarseGraining_${cg}
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#_coarseGraining_${cg}
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#_coarseGraining_${cg}
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neighbor 0.001 bin
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neighbor 0.001 bin
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neigh_modify delay 0
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neigh_modify delay 0
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#Material properties required for new pair styles
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#Material properties required for granular pair styles
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||||||
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fix m1 all property/global youngsModulus peratomtype 5.e6
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fix m1 all property/global youngsModulus peratomtype 5.e6
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fix m2 all property/global poissonsRatio peratomtype 0.45
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fix m2 all property/global poissonsRatio peratomtype 0.45
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fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
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fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
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fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
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fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
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#pair style
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#pair style
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pair_style gran model hertz tangential history #Hertzian without cohesion
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pair_style gran model hertz tangential history #Hertzian without cohesion
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pair_coeff * *
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pair_coeff * *
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#timestep, gravity
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#timestep, gravity
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timestep 0.00001
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timestep 0.00001
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fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
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fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
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#walls
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#walls
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fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
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fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
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fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
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fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
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fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
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fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
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#cfd coupling
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#cfd coupling
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fix cfd all couple/cfd couple_every 100 mpi
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fix cfd all couple/cfd couple_every 100 mpi
|
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fix cfd2 all couple/cfd/force #/implicit
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fix cfd2 all couple/cfd/force #/implicit
|
||||||
|
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#apply nve integration to all particles that are inserted as single particles
|
#apply nve integration to all particles that are inserted as single particles
|
||||||
fix integr all nve/sphere
|
fix integr all nve/sphere
|
||||||
|
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#center of mass
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#center of mass
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compute centerOfMass all com
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compute centerOfMass all com
|
||||||
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#compute total dragforce
|
#compute total dragforce
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||||||
#compute dragtotal all reduce sum f_dragforce[1] f_dragforce[2] f_dragforce[3]
|
#compute dragtotal all reduce sum f_dragforce[1] f_dragforce[2] f_dragforce[3]
|
||||||
|
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||||||
#screen output
|
#screen output
|
||||||
compute 1 all erotate/sphere
|
compute rke all erotate/sphere
|
||||||
thermo_style custom step atoms ke c_1 vol c_centerOfMass[3] #c_dragtotal[1] c_dragtotal[2] c_dragtotal[3]
|
thermo_style custom step atoms ke c_rke vol c_centerOfMass[3] #c_dragtotal[1] c_dragtotal[2] c_dragtotal[3]
|
||||||
thermo 10
|
thermo 10
|
||||||
thermo_modify lost ignore norm no
|
thermo_modify lost ignore norm no
|
||||||
compute_modify thermo_temp dynamic yes
|
compute_modify thermo_temp dynamic yes
|
||||||
|
|
||||||
#insert the first particles so that dump is not empty
|
#insert the first particles so that dump is not empty
|
||||||
dump myDump all stl 1 post/dump_*.stl
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dump myDump all stl 1 post/dump_*.stl
|
||||||
#run 1
|
dump dmp all custom 1000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz radius
|
||||||
dump dmp all custom 1000 ../DEM/post/dump*.liggghts_restart id type type x y z vx vy vz fx fy fz radius #f_dragforce[1] f_dragforce[2] f_dragforce[3]
|
undump myDump
|
||||||
undump myDump
|
|
||||||
|
|
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run 1
|
run 1
|
||||||
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|||||||
@ -1,4 +1,4 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
echo both
|
echo both
|
||||||
atom_style granular
|
atom_style granular
|
||||||
atom_modify map array
|
atom_modify map array
|
||||||
@ -24,7 +24,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
|||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
# timestep, gravity
|
# timestep, gravity
|
||||||
@ -55,7 +55,7 @@ compute_modify thermo_temp dynamic yes
|
|||||||
|
|
||||||
# insert the first particles so that dump is not empty
|
# insert the first particles so that dump is not empty
|
||||||
run 1
|
run 1
|
||||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||||
#node : f_couple_cfd[6]
|
#node : f_couple_cfd[6]
|
||||||
#cell id : f_couple_cfd[7]
|
#cell id : f_couple_cfd[7]
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
log ../DEM/log.liggghts
|
log ../DEM/log.liggghts
|
||||||
thermo_log ../DEM/post/thermo.txt
|
thermo_log ../DEM/post/thermo.txt
|
||||||
|
|
||||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
|||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
# timestep, gravity
|
# timestep, gravity
|
||||||
@ -34,8 +34,8 @@ timestep 0.00001
|
|||||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||||
|
|
||||||
# walls
|
# walls
|
||||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
|
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
|
||||||
|
|
||||||
# change the particles density
|
# change the particles density
|
||||||
@ -63,6 +63,6 @@ thermo 10
|
|||||||
thermo_modify lost ignore norm no
|
thermo_modify lost ignore norm no
|
||||||
compute_modify thermo_temp dynamic yes
|
compute_modify thermo_temp dynamic yes
|
||||||
|
|
||||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_run id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_run id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||||
|
|
||||||
run 1
|
run 1
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
echo both
|
echo both
|
||||||
atom_style granular
|
atom_style granular
|
||||||
atom_modify map array
|
atom_modify map array
|
||||||
@ -24,7 +24,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
|||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
# timestep, gravity
|
# timestep, gravity
|
||||||
@ -55,7 +55,7 @@ compute_modify thermo_temp dynamic yes
|
|||||||
|
|
||||||
# insert the first particles so that dump is not empty
|
# insert the first particles so that dump is not empty
|
||||||
run 1
|
run 1
|
||||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||||
#node : f_couple_cfd[6]
|
#node : f_couple_cfd[6]
|
||||||
#cell id : f_couple_cfd[7]
|
#cell id : f_couple_cfd[7]
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
log ../DEM/log.liggghts
|
log ../DEM/log.liggghts
|
||||||
thermo_log ../DEM/post/thermo.txt
|
thermo_log ../DEM/post/thermo.txt
|
||||||
|
|
||||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
|||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
# timestep, gravity
|
# timestep, gravity
|
||||||
@ -61,6 +61,6 @@ thermo 10
|
|||||||
thermo_modify lost ignore norm no
|
thermo_modify lost ignore norm no
|
||||||
compute_modify thermo_temp dynamic yes
|
compute_modify thermo_temp dynamic yes
|
||||||
|
|
||||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_run id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_run id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||||
|
|
||||||
run 1
|
run 1
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
echo both
|
echo both
|
||||||
atom_style granular
|
atom_style granular
|
||||||
atom_modify map array
|
atom_modify map array
|
||||||
@ -24,7 +24,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
|||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
# timestep, gravity
|
# timestep, gravity
|
||||||
@ -32,8 +32,8 @@ timestep 0.00001
|
|||||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||||
|
|
||||||
# walls
|
# walls
|
||||||
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||||
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
|
||||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
|
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
|
||||||
|
|
||||||
# particle distributions and insertion
|
# particle distributions and insertion
|
||||||
@ -55,7 +55,7 @@ compute_modify thermo_temp dynamic yes
|
|||||||
|
|
||||||
# insert the first particles so that dump is not empty
|
# insert the first particles so that dump is not empty
|
||||||
run 1
|
run 1
|
||||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||||
#node : f_couple_cfd[6]
|
#node : f_couple_cfd[6]
|
||||||
#cell id : f_couple_cfd[7]
|
#cell id : f_couple_cfd[7]
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
log ../DEM/log.liggghts
|
log ../DEM/log.liggghts
|
||||||
thermo_log ../DEM/post/thermo.txt
|
thermo_log ../DEM/post/thermo.txt
|
||||||
|
|
||||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
|||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
# timestep, gravity
|
# timestep, gravity
|
||||||
@ -60,6 +60,6 @@ thermo 10
|
|||||||
thermo_modify lost ignore norm no
|
thermo_modify lost ignore norm no
|
||||||
compute_modify thermo_temp dynamic yes
|
compute_modify thermo_temp dynamic yes
|
||||||
|
|
||||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||||
|
|
||||||
run 1
|
run 1
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
log ../DEM/log.liggghts
|
log ../DEM/log.liggghts
|
||||||
thermo_log ../DEM/post/thermo.txt
|
thermo_log ../DEM/post/thermo.txt
|
||||||
|
|
||||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
|||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
# timestep, gravity
|
# timestep, gravity
|
||||||
@ -60,6 +60,6 @@ thermo 10
|
|||||||
thermo_modify lost ignore norm no
|
thermo_modify lost ignore norm no
|
||||||
compute_modify thermo_temp dynamic yes
|
compute_modify thermo_temp dynamic yes
|
||||||
|
|
||||||
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
dump dmp all custom 5000 ../DEM/post/dump*.liggghts_restart id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
|
||||||
|
|
||||||
run 1
|
run 1
|
||||||
|
|||||||
@ -27,7 +27,7 @@ fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
|||||||
#fix m5 all property/global characteristicVelocity scalar 2.0
|
#fix m5 all property/global characteristicVelocity scalar 2.0
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history # hertz without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
# timestep, gravity
|
# timestep, gravity
|
||||||
@ -68,6 +68,6 @@ compute_modify thermo_temp dynamic yes
|
|||||||
|
|
||||||
# insert the first particles so that dump is not empty
|
# insert the first particles so that dump is not empty
|
||||||
run 1
|
run 1
|
||||||
dump dmp all custom 1000 ../DEM/post/dump.liggghts_run id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
dump dmp all custom 1000 ../DEM/post/dump.liggghts_run id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||||
|
|
||||||
run 1 upto
|
run 1 upto
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
# Particle packing by insertion and successive growing of particles
|
# heattransfer in packed bed
|
||||||
|
|
||||||
atom_style granular
|
atom_style granular
|
||||||
atom_modify map array
|
atom_modify map array
|
||||||
@ -26,7 +26,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
|||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history #Hertzian without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
timestep 0.00001
|
timestep 0.00001
|
||||||
@ -65,7 +65,7 @@ compute_modify thermo_temp dynamic yes
|
|||||||
|
|
||||||
#insert the first particles
|
#insert the first particles
|
||||||
run 1
|
run 1
|
||||||
dump dmp all custom 1000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius f_heattransfer[0] f_heatFlux[0]
|
dump dmp all custom 1000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius f_heattransfer[0] f_heatFlux[0]
|
||||||
|
|
||||||
run 150000
|
run 150000
|
||||||
|
|
||||||
|
|||||||
@ -70,6 +70,6 @@ thermo 1000
|
|||||||
thermo_modify lost ignore norm no
|
thermo_modify lost ignore norm no
|
||||||
compute_modify thermo_temp dynamic yes
|
compute_modify thermo_temp dynamic yes
|
||||||
|
|
||||||
dump dmp all custom 100 ../DEM/post/dump.liggghts_run id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius f_Temp[0] f_heatFlux[0]
|
dump dmp all custom 100 ../DEM/post/dump.liggghts_run id type x y z vx vy vz fx fy fz omegax omegay omegaz radius f_Temp[0] f_heatFlux[0]
|
||||||
|
|
||||||
run 1
|
run 1
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
echo both
|
echo both
|
||||||
atom_style granular
|
atom_style granular
|
||||||
atom_modify map array
|
atom_modify map array
|
||||||
@ -24,7 +24,7 @@ fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
|
|||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
|
||||||
|
|
||||||
# pair style
|
# pair style
|
||||||
pair_style gran model hertz tangential history # Hertzian without cohesion
|
pair_style gran model hertz tangential history
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
# timestep, gravity
|
# timestep, gravity
|
||||||
@ -55,7 +55,7 @@ compute_modify thermo_temp dynamic yes
|
|||||||
|
|
||||||
# insert the first particles so that dump is not empty
|
# insert the first particles so that dump is not empty
|
||||||
run 1
|
run 1
|
||||||
dump dmp all custom 5000 post/dump.liggghts_init id type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
|
dump dmp all custom 5000 post/dump.liggghts_init id type x y z vx vy vz fx fy fz omegax omegay omegaz radius
|
||||||
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
#force : f_couple_cfd[0] f_couple_cfd[1] f_couple_cfd[2]
|
||||||
#node : f_couple_cfd[6]
|
#node : f_couple_cfd[6]
|
||||||
#cell id : f_couple_cfd[7]
|
#cell id : f_couple_cfd[7]
|
||||||
|
|||||||
@ -1,4 +1,4 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
log ../DEM/log.liggghts
|
log ../DEM/log.liggghts
|
||||||
thermo_log ../DEM/post/thermo.txt
|
thermo_log ../DEM/post/thermo.txt
|
||||||
|
|
||||||
@ -40,7 +40,7 @@ fix cylwalls all wall/gran model hertz tangential history primitive type
|
|||||||
|
|
||||||
# heat transfer
|
# heat transfer
|
||||||
fix ftco all property/global thermalConductivity peratomtype 1. # lambda in [W/(K*m)]
|
fix ftco all property/global thermalConductivity peratomtype 1. # lambda in [W/(K*m)]
|
||||||
fix ftca all property/global thermalCapacity peratomtype 1000. # cp in [J/(kg*K)]
|
fix ftca all property/global thermalCapacity peratomtype 1000. # cp in [J/(kg*K)]
|
||||||
fix heattransfer all heat/gran initial_temperature 300.
|
fix heattransfer all heat/gran initial_temperature 300.
|
||||||
|
|
||||||
# set particle temperature for the bed
|
# set particle temperature for the bed
|
||||||
@ -54,7 +54,7 @@ set group all density 2000
|
|||||||
# cfd coupling
|
# cfd coupling
|
||||||
fix cfd all couple/cfd couple_every 25 mpi
|
fix cfd all couple/cfd couple_every 25 mpi
|
||||||
fix cfd2 all couple/cfd/force/implicit
|
fix cfd2 all couple/cfd/force/implicit
|
||||||
fix cfd3 all couple/cfd/convection T0 300
|
fix cfd3 all couple/cfd/convection T0 300
|
||||||
|
|
||||||
# apply nve integration to all particles that are inserted as single particles
|
# apply nve integration to all particles that are inserted as single particles
|
||||||
fix integr all nve/sphere
|
fix integr all nve/sphere
|
||||||
@ -72,6 +72,6 @@ thermo 10
|
|||||||
thermo_modify lost ignore norm no
|
thermo_modify lost ignore norm no
|
||||||
compute_modify thermo_temp dynamic yes
|
compute_modify thermo_temp dynamic yes
|
||||||
|
|
||||||
dump dmp all custom/vtk 10000 ../DEM/post/dump*.liggghts_run.vtk id type radius x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] f_Temp[0]
|
dump dmp all custom/vtk 10000 ../DEM/post/dump*.liggghts_run.vtk id type radius x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] f_Temp[0]
|
||||||
|
|
||||||
run 1
|
run 1
|
||||||
|
|||||||
@ -1,19 +1,19 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
|
|
||||||
###############################################
|
###############################################
|
||||||
#variables
|
#variables
|
||||||
|
|
||||||
# DEM-parameters
|
# DEM-parameters
|
||||||
variable partDens equal 1732 # density
|
variable partDens equal 1732 # density
|
||||||
variable partRad equal 0.00184 # particle radius
|
variable partRad equal 0.00184 # particle radius
|
||||||
variable partVol equal 4*3.14/3*${partRad}^3
|
variable partVol equal 4*3.14/3*${partRad}^3
|
||||||
variable yM equal 5.e6 # Young's modulus
|
variable yM equal 5.e6 # Young's modulus
|
||||||
variable pR equal 0.25 # Poisson ratio
|
variable pR equal 0.25 # Poisson ratio
|
||||||
variable rest equal 0.66 # coefficient of restitution
|
variable rest equal 0.66 # coefficient of restitution
|
||||||
variable fric equal 0.95 # coefficient of friction
|
variable fric equal 0.95 # coefficient of friction
|
||||||
variable roll equal 0.15 # for particles and walls with friction
|
variable roll equal 0.15 # for particles and walls with friction
|
||||||
variable noRoll equal 0 # for frictionless walls
|
variable noRoll equal 0 # for frictionless walls
|
||||||
variable cV equal 0.1 # characteristic velocity
|
variable cV equal 0.1 # characteristic velocity
|
||||||
|
|
||||||
# Geometry
|
# Geometry
|
||||||
variable cylrad equal 0.05
|
variable cylrad equal 0.05
|
||||||
@ -22,7 +22,7 @@ variable fillV equal ${fillH}*${cylrad}^2*3.14
|
|||||||
variable nPart equal ceil(${fillV}*0.7/${partVol})
|
variable nPart equal ceil(${fillV}*0.7/${partVol})
|
||||||
|
|
||||||
#variable nPart equal 1
|
#variable nPart equal 1
|
||||||
#variable partDens equal 1.13 # density
|
#variable partDens equal 1.13 # density
|
||||||
|
|
||||||
variable dt equal 0.00005
|
variable dt equal 0.00005
|
||||||
variable skin equal 0.005
|
variable skin equal 0.005
|
||||||
@ -33,39 +33,39 @@ variable skin equal 0.005
|
|||||||
variable vthre equal 0.0005
|
variable vthre equal 0.0005
|
||||||
###############################################
|
###############################################
|
||||||
|
|
||||||
atom_style granular
|
atom_style granular
|
||||||
atom_modify map array
|
atom_modify map array
|
||||||
communicate single vel yes
|
communicate single vel yes
|
||||||
|
|
||||||
boundary f f f
|
boundary f f f
|
||||||
newton off
|
newton off
|
||||||
units si
|
units si
|
||||||
processors 1 1 4
|
processors 1 1 4
|
||||||
|
|
||||||
region reg block -${cylrad} ${cylrad} -${cylrad} ${cylrad} 0.0 0.9 units box
|
region reg block -${cylrad} ${cylrad} -${cylrad} ${cylrad} 0.0 0.9 units box
|
||||||
create_box 1 reg
|
create_box 1 reg
|
||||||
|
|
||||||
neighbor 0.001 bin
|
neighbor 0.001 bin
|
||||||
neigh_modify delay 0
|
neigh_modify delay 0
|
||||||
|
|
||||||
#Material properties required for new pair styles
|
#Material properties required for granular pair styles
|
||||||
|
|
||||||
fix m1 all property/global youngsModulus peratomtype ${yM}
|
fix m1 all property/global youngsModulus peratomtype ${yM}
|
||||||
fix m2 all property/global poissonsRatio peratomtype ${pR}
|
fix m2 all property/global poissonsRatio peratomtype ${pR}
|
||||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 ${rest}
|
fix m3 all property/global coefficientRestitution peratomtypepair 1 ${rest}
|
||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 ${fric}
|
fix m4 all property/global coefficientFriction peratomtypepair 1 ${fric}
|
||||||
fix m5 all property/global coefficientRollingFriction peratomtypepair 1 ${roll}
|
fix m5 all property/global coefficientRollingFriction peratomtypepair 1 ${roll}
|
||||||
fix m6 all property/global characteristicVelocity scalar ${cV}
|
fix m6 all property/global characteristicVelocity scalar ${cV}
|
||||||
|
|
||||||
#pair style
|
#pair style
|
||||||
pair_style gran model hertz tangential history rolling_friction cdt
|
pair_style gran model hertz tangential history rolling_friction cdt
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
#timestep, gravity
|
#timestep, gravity
|
||||||
timestep ${dt}
|
timestep ${dt}
|
||||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||||
|
|
||||||
fix zwall all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
fix zwall all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder ${cylrad} 0. 0.
|
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder ${cylrad} 0. 0.
|
||||||
|
|
||||||
fix pts1 all particletemplate/sphere 1 atom_type 1 density constant ${partDens} radius constant ${partRad}
|
fix pts1 all particletemplate/sphere 1 atom_type 1 density constant ${partDens} radius constant ${partRad}
|
||||||
@ -73,20 +73,20 @@ fix pdd1 all particledistribution/discrete 1.0 1 pts1 1.0
|
|||||||
|
|
||||||
region insReg cylinder z 0. 0. ${cylrad} 0.5 0.9 units box
|
region insReg cylinder z 0. 0. ${cylrad} 0.5 0.9 units box
|
||||||
|
|
||||||
fix ins all insert/rate/region seed 1001 distributiontemplate pdd1 nparticles ${nPart} particlerate 10000 insert_every 1000 vel constant 0. 0. -0.1 overlapcheck yes all_in yes region insReg ntry_mc 10000
|
fix ins all insert/rate/region seed 1001 distributiontemplate pdd1 nparticles ${nPart} particlerate 10000 insert_every 1000 vel constant 0. 0. -0.1 overlapcheck yes all_in yes region insReg ntry_mc 10000
|
||||||
|
|
||||||
#fix loadBalancing all balance 10000 z 10 1.05
|
#fix loadBalancing all balance 10000 z 10 1.05
|
||||||
|
|
||||||
fix integr all nve/sphere
|
fix integr all nve/sphere
|
||||||
|
|
||||||
fix ts_check all check/timestep/gran 10000 0.1 0.1
|
fix ts_check all check/timestep/gran 10000 0.1 0.1
|
||||||
|
|
||||||
#screen output
|
#screen output
|
||||||
compute 1 all erotate/sphere
|
compute rke all erotate/sphere
|
||||||
thermo_style custom step atoms ke c_1 vol
|
thermo_style custom step atoms ke c_rke vol
|
||||||
thermo 10000
|
thermo 10000
|
||||||
thermo_modify lost ignore norm no
|
thermo_modify lost ignore norm no
|
||||||
compute_modify thermo_temp dynamic yes
|
compute_modify thermo_temp dynamic yes
|
||||||
|
|
||||||
#======================================================================
|
#======================================================================
|
||||||
#- settling
|
#- settling
|
||||||
@ -98,14 +98,14 @@ variable vcmz equal vcm(all,z)
|
|||||||
variable vave equal sqrt(v_vcmx*v_vcmx+v_vcmy*v_vcmy+v_vcmz*v_vcmz)
|
variable vave equal sqrt(v_vcmx*v_vcmx+v_vcmy*v_vcmy+v_vcmz*v_vcmz)
|
||||||
print ${vave}
|
print ${vave}
|
||||||
|
|
||||||
dump dmp1 all custom/vtk 20000 ../DEM/post/dump*.liggghts_filling.vtk id type type x y z vx vy vz fx fy fz radius
|
dump dmp1 all custom/vtk 20000 ../DEM/post/dump*.liggghts_filling.vtk id type x y z vx vy vz fx fy fz radius
|
||||||
|
|
||||||
run 200000
|
run 200000
|
||||||
|
|
||||||
label loop
|
label loop
|
||||||
print "-----> Checking Velocity..."
|
print "-----> Checking Velocity..."
|
||||||
if "${vave}<${vthre}" then "jump in.liggghts_init endloop"
|
if "${vave}<${vthre}" then "jump in.liggghts_init endloop"
|
||||||
print "-----> v ave ${vave}, v threshold ${vthre}, continuing run"
|
print "-----> v ave ${vave}, v threshold ${vthre}, continuing run"
|
||||||
|
|
||||||
run 10000
|
run 10000
|
||||||
jump in.liggghts_init loop
|
jump in.liggghts_init loop
|
||||||
@ -117,7 +117,7 @@ label endloop
|
|||||||
region delReg block -${cylrad} ${cylrad} -${cylrad} ${cylrad} ${fillH} INF units box
|
region delReg block -${cylrad} ${cylrad} -${cylrad} ${cylrad} ${fillH} INF units box
|
||||||
run 1 every 1 "delete_atoms region delReg"
|
run 1 every 1 "delete_atoms region delReg"
|
||||||
|
|
||||||
#write_restart liggghts.restart.prelim
|
#write_restart liggghts.restart.prelim
|
||||||
run 10000
|
run 10000
|
||||||
write_restart liggghts.restart_${partRad}
|
write_restart liggghts.restart_${partRad}
|
||||||
print "everything done"
|
print "everything done"
|
||||||
|
|||||||
@ -1,18 +1,18 @@
|
|||||||
# Pour granular particles into chute container, then induce flow
|
# Pour granular particles into a cylinder, then induce flow
|
||||||
|
|
||||||
#variables
|
#variables
|
||||||
|
|
||||||
# DEM-parameters
|
# DEM-parameters
|
||||||
variable partDens equal 1732 # density
|
variable partDens equal 1732 # density
|
||||||
variable partRad equal 0.00184 # particle radius
|
variable partRad equal 0.00184 # particle radius
|
||||||
variable partVol equal 4*3.14/3*${partRad}^3
|
variable partVol equal 4*3.14/3*${partRad}^3
|
||||||
variable yM equal 5.e6 # Young's modulus
|
variable yM equal 5.e6 # Young's modulus
|
||||||
variable pR equal 0.25 # Poisson ratio
|
variable pR equal 0.25 # Poisson ratio
|
||||||
variable rest equal 0.66 # coefficient of restitution
|
variable rest equal 0.66 # coefficient of restitution
|
||||||
variable fric equal 0.95 # coefficient of friction
|
variable fric equal 0.95 # coefficient of friction
|
||||||
variable roll equal 0.15 # for particles and walls with friction
|
variable roll equal 0.15 # for particles and walls with friction
|
||||||
variable noRoll equal 0 # for frictionless walls
|
variable noRoll equal 0 # for frictionless walls
|
||||||
variable cV equal 0.1 # characteristic velocity
|
variable cV equal 0.1 # characteristic velocity
|
||||||
variable Tpart equal 293
|
variable Tpart equal 293
|
||||||
|
|
||||||
# Geometry
|
# Geometry
|
||||||
@ -24,73 +24,72 @@ variable skin equal 0.005
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
atom_style granular
|
atom_style granular
|
||||||
atom_modify map array
|
atom_modify map array
|
||||||
communicate single vel yes
|
communicate single vel yes
|
||||||
|
|
||||||
boundary f f f
|
boundary f f f
|
||||||
newton off
|
newton off
|
||||||
units si
|
units si
|
||||||
processors 1 1 4
|
processors 1 1 4
|
||||||
|
|
||||||
read_restart ../DEM/liggghts.restart_${partRad}
|
read_restart ../DEM/liggghts.restart_${partRad}
|
||||||
reset_timestep 0
|
reset_timestep 0
|
||||||
|
|
||||||
neighbor 0.01 bin
|
neighbor 0.01 bin
|
||||||
neigh_modify delay 0
|
neigh_modify delay 0
|
||||||
|
|
||||||
#Material properties required for new pair styles
|
#Material properties required for granular pair styles
|
||||||
fix m1 all property/global youngsModulus peratomtype ${yM}
|
fix m1 all property/global youngsModulus peratomtype ${yM}
|
||||||
fix m2 all property/global poissonsRatio peratomtype ${pR}
|
fix m2 all property/global poissonsRatio peratomtype ${pR}
|
||||||
fix m3 all property/global coefficientRestitution peratomtypepair 1 ${rest}
|
fix m3 all property/global coefficientRestitution peratomtypepair 1 ${rest}
|
||||||
fix m4 all property/global coefficientFriction peratomtypepair 1 ${fric}
|
fix m4 all property/global coefficientFriction peratomtypepair 1 ${fric}
|
||||||
fix m5 all property/global coefficientRollingFriction peratomtypepair 1 ${roll}
|
fix m5 all property/global coefficientRollingFriction peratomtypepair 1 ${roll}
|
||||||
fix m6 all property/global characteristicVelocity scalar ${cV}
|
fix m6 all property/global characteristicVelocity scalar ${cV}
|
||||||
|
|
||||||
fix ftco all property/global thermalConductivity peratomtype 1.4
|
fix ftco all property/global thermalConductivity peratomtype 1.4
|
||||||
fix ftca all property/global thermalCapacity peratomtype 840.
|
fix ftca all property/global thermalCapacity peratomtype 840.
|
||||||
fix heattransfer all heat/gran initial_temperature 293.
|
fix heattransfer all heat/gran initial_temperature 293.
|
||||||
|
|
||||||
|
|
||||||
#pair style
|
#pair style
|
||||||
pair_style gran model hertz tangential history rolling_friction cdt
|
pair_style gran model hertz tangential history rolling_friction cdt
|
||||||
pair_coeff * *
|
pair_coeff * *
|
||||||
|
|
||||||
#timestep, gravity
|
#timestep, gravity
|
||||||
timestep ${dt}
|
timestep ${dt}
|
||||||
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
|
||||||
|
|
||||||
fix zwall all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
fix zwall all wall/gran model hertz tangential history primitive type 1 zplane 0.0
|
||||||
fix zwall_top all wall/gran model hertz tangential history primitive type 1 zplane 0.54
|
fix zwall_top all wall/gran model hertz tangential history primitive type 1 zplane 0.54
|
||||||
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder ${cylrad} 0. 0.
|
fix cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder ${cylrad} 0. 0.
|
||||||
|
|
||||||
|
|
||||||
# change the particles density
|
# change the particles density
|
||||||
# set group all density ${partDens}
|
# set group all density ${partDens}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
fix lb all balance 1000 xyz 10 1.05 out tmp.balance
|
fix lb all balance 1000 xyz 10 1.05 out tmp.balance
|
||||||
|
|
||||||
|
|
||||||
#cfd coupling
|
#cfd coupling
|
||||||
fix cfd all couple/cfd couple_every 10 mpi
|
fix cfd all couple/cfd couple_every 10 mpi
|
||||||
fix cfd2 all couple/cfd/force/implicit
|
fix cfd2 all couple/cfd/force/implicit
|
||||||
fix cfd3 all couple/cfd/convection T0 ${Tpart}
|
fix cfd3 all couple/cfd/convection T0 ${Tpart}
|
||||||
|
|
||||||
# freeze particles
|
# freeze particles
|
||||||
#fix integr all nve/sphere
|
#fix integr all nve/sphere
|
||||||
|
|
||||||
|
|
||||||
#screen output
|
#screen output
|
||||||
variable totmass equal mass(all)
|
variable totmass equal mass(all)
|
||||||
compute 1 all erotate/sphere
|
compute rke all erotate/sphere
|
||||||
thermo_style custom step atoms ke c_1 vol v_totmass
|
thermo_style custom step atoms ke c_rke vol v_totmass
|
||||||
thermo 1000
|
thermo 1000
|
||||||
thermo_modify lost ignore norm no
|
thermo_modify lost ignore norm no
|
||||||
compute_modify thermo_temp dynamic yes
|
compute_modify thermo_temp dynamic yes
|
||||||
|
|
||||||
#insert the first particles so that dump is not empty
|
#insert the first particles so that dump is not empty
|
||||||
dump dmp all custom/vtk 40000 ../DEM/post/dump*.liggghts_coupled.vtk id type x y z vx vy vz fx fy fz radius f_Temp[0]
|
dump dmp all custom/vtk 40000 ../DEM/post/dump*.liggghts_coupled.vtk id type x y z vx vy vz fx fy fz radius f_Temp[0]
|
||||||
|
|
||||||
run 1
|
run 1
|
||||||
|
|||||||
Reference in New Issue
Block a user