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RT£¬ÎÒÓÃMS½¨Á¢ÁËÒ»¸ö6000·Ö×ÓµÄSPCË®·Ö×ÓÄ£ÐÍ¡£µ«Êǵõ½µÄÔÚ293KµÄÃܶÈ×ÜÊÇ0.96ÕâÑù£¬¾àÀëʵ¼ÊÖµ»òÕßSPCË®·Ö×ÓµÄʵÑéÖµ¶¼ÓÐ0.2¡«0.3µÄ²î¾à£¨ËäÈ»¿´ÉÏÈ¥²»Ëã´ó£¬²»¹ýÕâû¹ØÏµÂ𣿣©
ÎÒÏëÖªµÀÕâÊÇʲôµ¼Öµģ¬density=mass(all)/(²ÎÊý*vol)£¬µ«ÊÇmassÊDz»±äµÄ£¬ÃܶȵÄÌå»ý¾ÍÖ»¸úÌå»ýÓйØÁË¡£ÎªÊ²Ã´ÔÚζȵ½´ï293¸½½üµÄʱºò²¨¶¯»¹±È½Ï´ó£¨270¡«300ÉÏϲ¨¶¯£©£¬ÃܶȵIJ¨¶¯£¨0.95¡«0.97ÉÏϲ¨¶¯£©¡£Çë´óÅ£ÃǰïÎÒ·ÖÎöһϵ½µ×ÄÄÀïÓÐÎÊÌâ¡£ inÎļþºÍdataÎļþÈçÏ£º
inÎļþ£º
units              real
dimension          3
boundary           p p p
atom_style         full
pair_style         lj/cut/coul/long 9.0 9.0
bond_style         harmonic
angle_style        harmonic
kspace_style       pppm 1.0e-4
read_data          water.lammps05
neighbor           2.0 bin
neigh_modify       delay 5 every 1
velocity           all create 298 4928459 dist uniform
variable           density equal mass(all)*10/(6.0221417930*vol)
timestep           0.01
thermo             2000
thermo_style       custom step temp press vol etotal v_density
fix                fixShake all shake 0.0001 100 0 b 1 a 1
fix                1 all npt temp 293.0 293.0 100 iso 1.0 1.0 1000 drag 0.2
run                100000
unfix              1
fix                2 all nve
dump               1 all custom 1000 dumpnve.lammpstrj id type xu yu zu
run                10000


dataÎļþ£º
LAMMPS 2005 data file for water

   6000 atoms
   4000 bonds
   2000 angles
      0 dihedrals
      0 impropers

   2 atom types
   1 bond types
   1 angle types

     0.000000000    39.107300000 xlo xhi
     0.000000000    39.107300000 ylo yhi
     0.000000000    39.107300000 zlo zhi

Masses

   1  15.999400
   2   1.007970

Pair Coeffs

   1   0.1553000000   3.1660000000
   2   0.0000000000   0.0000000000

Bond Coeffs

  1   450     1

Angle Coeffs

  1    47.0000   109.4700

Atoms

1    1    1    -0.82    7.597767833    9.408946512    5.391758138
2    1    2    0.41    6.641116667    9.263121029    5.557195421
3    1    2    0.41    7.756749235    8.739511125    4.691137645
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Pair Coeffs£¨lj/cut/coul/long £©

    1   0.1553000000   3.1660000000
    2   0.0000000000   0.0000000000

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