Dear all,
I am using multi- sphere parcels but I do not know why they stick to a plate which I put in the computational box.
#Multisphere
atom_style sphere
atom_modify map array sort 0 0
boundary f f f
newton off
communicate single vel yes
#PUBLIC version only supports serial execution
processors 1 1 1
units si
region reg block -0.5 0.3 -0.3 0.3 0. 0.5 units box
create_box 1 reg
neighbor 0.004 bin
neigh_modify delay 0
#Material properties required for new pair styles
fix m1 all property/global youngsModulus peratomtype 1.e7
fix m2 all property/global poissonsRatio peratomtype 0.45
fix m3 all property/global coefficientRestitution peratomtypepair 1 0.3
fix m4 all property/global coefficientFriction peratomtypepair 1 0.5
fix m5 all property/global characteristicVelocity scalar 2.
#New pair style
pair_style gran model hertz tangential history #Hertzian without cohesion
pair_coeff * *
timestep 0.00001
fix gravi all gravity 9.81 vector 0.0 0.0 -1
fix zwalls all wall/gran model hertz tangential history primitive type 1 zplane 0
fix xwalls all wall/gran model hertz tangential history primitive type 1 xplane -0.5
fix xxwalls all wall/gran model hertz tangential history primitive type 1 xplane 0.3
fix pts1 all particletemplate/multisphere 15485863 atom_type 1 density constant 2500 nspheres 9 ntry 1000000 spheres file data/stone1.multisphere scale 0.001 type 1
fix pdd1 all particledistribution/discrete 15485867 1 pts1 1.0
fix cv all wall/gran model hertz tangential history primitive type 1 xplane -0.15
#region and insertion
region bc cylinder z -0.3 -0.1 0.15 0.2 0.4 units box
fix ins all insert/pack seed 32452843 distributiontemplate pdd1 vel constant 0. 0. -1. &
insert_every once overlapcheck yes region bc ntry_mc 10000 volumefraction_region 0.4
#integrator for multisphere rigid bodies
fix integr all multisphere
#output settings, include total thermal energy
compute 1 all erotate/sphere
fix ts all check/timestep/gran 1000 0.1 0.1
thermo_style custom step atoms ke c_1 f_ts[1] f_ts[2] vol
thermo 1000
thermo_modify lost ignore norm no
run 1
#insert the first particles so that dump is not empty
dump dmp all custom/vtk 200 post/multi_*.vtk id type mol x y z vx vy vz fx fy fz omegax omegay omegaz radius
#insert particles
run 50000 upto
unfix cv
run 60000