# Ellipsoids in LJ background fluid units lj atom_style ellipsoid dimension 2 lattice sq 0.02 region box block 0 20 0 20 -0.5 0.5 create_box 2 box create_atoms 1 box set group all type/fraction 2 0.1 95392 set group all quat/random 18238 mass 1 1.0 mass 2 1.5 shape 1 1 1 1 shape 2 3 1 1 compute rot all temp/asphere velocity all create 2.4 87287 loop geom pair_style gayberne 1.0 3.0 1.0 4.0 pair_coeff 1 1 3.0 1.0 1 1 1 1 1 1 2.5 pair_coeff 1 2 3.0 1.0 1 1 1 0 0 0 pair_coeff 2 2 1.0 1.0 1 1 0.2 0 0 0 neighbor 0.8 bin thermo_style custom step c_rot epair etotal press vol thermo 100 timestep 0.002 dump 1 all custom 100 dump.ellipse & tag type x y z quatw quati quatj quatk fix 1 all npt/asphere 2.0 2.0 0.1 xyz 0.0 1.0 1.0 fix 2 all enforce2d # equilibrate to shrink box around dilute system run 2000 # run dynamics on dense system unfix 1 fix 1 all nve/asphere run 2000