mirror of
https://github.com/ParticulateFlow/CFDEMcoupling-PFM.git
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72 lines
2.8 KiB
Plaintext
72 lines
2.8 KiB
Plaintext
# Pour granular particles into chute container, then induce flow
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echo both
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atom_style granular
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atom_modify map array
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communicate single vel yes
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boundary f f f
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newton off
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units si
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region reg block 0 0.2 0 0.1 0 0.3 units box
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create_box 1 reg
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neighbor 0.001 bin
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neigh_modify delay 0
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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 m2 all property/global poissonsRatio peratomtype 0.45
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fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3 #0.9
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fix m4 all property/global coefficientFriction peratomtypepair 1 0.5 #0.3
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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_coeff * *
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# timestep, gravity
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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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# walls
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fix zwalls1 all wall/gran model hertz tangential history primitive type 1 zplane 0
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fix zwalls2 all wall/gran model hertz tangential history primitive type 1 zplane 0.3
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fix xwalls1 all wall/gran model hertz tangential history primitive type 1 xplane 0
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fix xwalls2 all wall/gran model hertz tangential history primitive type 1 xplane 0.2
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fix ywalls1 all wall/gran model hertz tangential history primitive type 1 yplane 0
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fix ywalls2 all wall/gran model hertz tangential history primitive type 1 yplane 0.1
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fix xwalls3 all wall/gran model hertz tangential history primitive type 1 xplane 0.15
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#fix cfdmesh all mesh/surface file ../CFD/mesh.stl type 1
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#fix walls all wall/gran model hertz tangential history mesh n_meshes 1 meshes cfdmesh
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# particle distributions and insertion
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#region bc block -0.05 0.05 -0.0025 0.0025 0.05 0.1 units box
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region bc block 0.15 0.2 0 0.1 0 0.1 units box
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fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 2500 radius constant 0.00135
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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. -1.0 insert_every once overlapcheck yes particles_in_region 3883 region bc
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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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# screen output
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compute rke all erotate/sphere
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thermo_style custom step atoms ke c_rke 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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# insert the first particles so that dump is not empty
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run 1
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dump dmp all custom 500 post/dump*.liggghts_init id type x y z ix iy iz 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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#node : f_couple_cfd[6]
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#cell id : f_couple_cfd[7]
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run 30000 upto
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write_restart post/restart/liggghts.restart
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