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如图,构建了一个固液体系进行模拟,力场参数和结构都是参照文献构建的,在模拟5ns后水分子跑出了盒子,想请教一下各位老师是哪儿出了问题。输入文件的参数如下:
units metal
dimension 3
boundary p p p
atom_style full
bond_style harmonic
angle_style harmonic
pair_style hybrid/overlay lennard/mdf 9.0 10.0 coul/long 9.0
kspace_style ewald 0.3945
thermo_style custom step time pe ke etotal enthalpy evdwl ecoul epair emol density
thermo 1000
timestep 0.001 #1fs
fix fShakeSPCE spce shake 0.0001 10 0 b 2 a 2
fix 1 all nve
neighbor 2.0 bin
fix 3 surface temp/rescale 200 300 300 0.5 0.2 #对固体表面控温
fix 4 spce temp/rescale 200 300 300 0.5 0.2 #对水进行控温
dump 1 all custom 1000 md.lammpstraj mol type x y z fx fy fz
run_style verlet
run 5000000
write_data md.data
write_restart md.rest
unfix 1
unfix 3
unfix 4
unfix fShakeSPCE
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