mirror of
https://github.com/ParticulateFlow/CFDEMcoupling-PFM.git
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74 lines
2.1 KiB
Plaintext
74 lines
2.1 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 m m m
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newton off
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units si
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processors 2 1 1
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#read the restart file
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read_restart ../DEM/liggghts.restartCFDEM
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#do not do this here, the simulation box is in the restart file!
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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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neighbor 0.0005 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 0.3
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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 gran/hertz/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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#walls
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fix zwalls1 all wall/gran/hertz/history primitive type 1 zplane 0.0
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fix zwalls2 all wall/gran/hertz/history primitive type 1 zplane 0.0553
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fix cylwalls all wall/gran/hertz/history primitive type 1 zcylinder 0.01385 0. 0. tangential_damping off
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# change the particles density
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set group all density 2000
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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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#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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#center of mass
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compute centerOfMass all com
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#compute total dragforce
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#compute dragtotal all reduce sum f_dragforce[1] f_dragforce[2] f_dragforce[3]
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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 c_centerOfMass[3] #c_dragtotal[1] c_dragtotal[2] c_dragtotal[3]
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thermo 10
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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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dump myDump all stl 1 post/dump_*.stl
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#run 1
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dump dmp all custom 5000 ../DEM/post/dump.liggghts_restart id type type x y z ix iy iz vx vy vz fx fy fz omegax omegay omegaz radius
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undump myDump
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run 1
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