# parallel computing settings package omp * force/neigh suffix omp echo screen # periodic boundary in x z direction boundary p s p units lj atom_style full special_bonds fene read_data wholesmall.data neighbor 0.4 bin neigh_modify every 1 delay 1 comm_modify mode single vel yes bond_style hybrid harmonic fene bond_coeff 1 harmonic 30 1.5 bond_coeff 2 fene 30.0 1.5 1.0 1.0 bond_coeff 3 harmonic 30 1.5 #pair_style hybrid/overlay airebo 3.0 1 1 lj96/cut 2.5 lj/sf 2.5 yukawa 1.0 2.5 dpd 1.0 1.0 122347 # define group group diamondlikecarbon type 1 group lubricant type 3 2 group flathead type 4 group subtop type 5 group subbottom type 6 velocity diamondlikecarbon set 0.0 0.0 0.0 velocity subtop set 0.0 0.0 0.0 velocity subbottom set 0.0 0.0 0.0 velocity flathead set 0.0 0.0 0.0 group mobile subtract all diamondlikecarbon subtop subbottom flathead dump 1 all custom 1000 wholesmallt4.lammpstrj id mol type x y z ix iy iz fix 1 mobile nve fix 2 diamondlikecarbon setforce 0.0 0.0 0.0 fix 3 subbottom setforce 0.0 0.0 0.0 fix 4 subtop setforce 0.0 0.0 0.0 fix 5 flathead setforce 0.0 0.0 0.0 #fix fxlan mobile langevin 1.0 1.0 10.0 904297 timestep 0.01 thermo 1000 pair_style dpd 1.0 1.0 122347 pair_coeff * * 25 4.5 1.0 velocity mobile create 1.0 17786140 run 20000 pair_coeff * * 50.0 4.5 1.0 velocity mobile create 1.0 15086120 run 50 pair_coeff * * 100.0 4.5 1.0 velocity mobile create 1.0 15786120 run 50 pair_coeff * * 150.0 4.5 1.0 velocity mobile create 1.0 15486120 run 50 pair_coeff * * 200.0 4.5 1.0 velocity mobile create 1.0 17986120 run 100 pair_coeff * * 250.0 4.5 1.0 velocity mobile create 1.0 15006120 run 100 pair_coeff * * 500.0 4.5 1.0 velocity mobile create 1.0 15087720 run 100 pair_coeff * * 1000.0 4.5 1.0 velocity mobile create 1.0 15086189 run 100