64 lines
1.9 KiB
Plaintext
64 lines
1.9 KiB
Plaintext
atom_style granular
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atom_modify map array
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boundary m m m
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newton off
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communicate single vel yes
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#processors 2 1 1
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units si
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region reg block -1 1 -1 1 -0.05 2.85 units box
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create_box 1 reg
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neighbor 0.01 bin
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neigh_modify delay 0
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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 0.9
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fix m4 all property/global coefficientFriction peratomtypepair 1 0.05
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fix m5 all property/global characteristicVelocity scalar 2.
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fix m6 all property/global cohesionEnergyDensity peratomtypepair 1 500
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#New 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 0.00001
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fix gravi all gravity 9.81 vector 0.0 0.0 -1.0
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#particle distributions
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fix pts1 all particletemplate/sphere 1 atom_type 1 density constant 2500 radius constant 0.015
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fix pts2 all particletemplate/sphere 1 atom_type 1 density constant 2500 radius constant 0.025
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fix pdd1 all particledistribution/discrete 1. 2 pts1 0.3 pts2 0.7
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#region and insertion
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fix ins_mesh all mesh/surface file meshes/face.stl type 1 scale 0.005
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group nve_group region reg
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fix ins nve_group insert/stream seed 100001 distributiontemplate pdd1 nparticles 5000 &
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vel constant 0. -0.5 -2. particlerate 1000 &
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overlapcheck yes insertion_face ins_mesh extrude_length 0.6
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#apply nve integration to all particles that are inserted as single particles
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fix integr nve_group nve/sphere
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#output settings, include total thermal energy
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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 800 post/dump*.stream id type type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
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#insert particles
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run 100000
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