mirror of
https://github.com/ParticulateFlow/CFDEMcoupling-PFM.git
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80 lines
2.5 KiB
Plaintext
80 lines
2.5 KiB
Plaintext
echo both
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# Pour granular particles into chute container, then induce flow
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atom_style granular
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atom_modify map array sort 0 0
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communicate single vel yes
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#processors 1 1 2
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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 0.1 0 0.1 0 0.1 units box
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create_box 1 reg
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neighbor 0.003 bin
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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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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
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fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
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#fix m5 all property/global characteristicVelocity scalar 2.0
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#pair style
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pair_style gran model hertz tangential history #hertzan 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 -1.0 0.0
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#walls (liggghts 2.0)
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fix xwalls1 all wall/gran model hertz tangential history primitive type 1 xplane 0.0
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fix xwalls2 all wall/gran model hertz tangential history primitive type 1 xplane 0.1
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fix ywalls1 all wall/gran model hertz tangential history primitive type 1 yplane 0.0
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fix ywalls2 all wall/gran model hertz tangential history primitive type 1 yplane 0.1
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fix 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 0.01
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#-import mesh from cad:
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#fix cad1 all mesh/gran hopperGenauerSALOME.stl 1 1.0 0. 0. 0. 0. 180. 0.
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#-use the imported mesh as granular wall
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#fix bucket_wall all wall/gran/hertz/history 1 0 mesh/gran 1 cad1
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#- create single partciles
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create_atoms 1 single 0.05 0.025 0.05 units box
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set group all diameter 0.0001 density 3000
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#cfd coupling
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fix cfd all couple/cfd couple_every 100 mpi
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fix cfd2 all couple/cfd/force
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variable vx equal vx[1]
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variable vy equal vy[1]
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variable vz equal vz[1]
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variable time equal step*dt
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fix extra all print 100 "${time} ${vx} ${vy} ${vz}" file ../DEM/post/velocity.txt title "%" screen no
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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 1 all erotate/sphere
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thermo_style custom step atoms ke c_1 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 1000 ../DEM/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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run 1 upto
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