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歐陽少恭新蟲 (初入文壇)
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[求助]
Lammps 模擬NPT系統(tǒng)出錯(cuò)
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這是我的input file, 想要在NVT的基礎(chǔ)上接著運(yùn)行NPT, 但是使用如下fix命令后無論是溫度還是壓強(qiáng)都沒有被fix,如果刪除fix rigid 那么分子之間的bond就消失了。。。使用fix rigid/npt 又說 invalid style。。。只有這種形式才能運(yùn)行,但是溫度和壓強(qiáng)又不fix。。。請(qǐng)各位大神幫幫忙~~~~~![]() input file: ———————————————————————————————————————————————————————————————————————— dimension 2 boundary p p p neighbor 0.3 bin neigh_modify delay 1 timestep 0.002 units lj atom_style full read_restart restart.dimer_final group dimer molecule <> 1 3200 thermo_style custom step temp press vol enthalpy pe ke etotal lx ly lz atoms pair_style hybrid/overlay lj/cut 6.0 yukawa 1.0 6.0 pair_coeff * * lj/cut 1.0 1.0 pair_coeff * * yukawa 2.250 fix 10 dimer rigid molecule fix 1 all press/berendsen iso 0.0018 0.0018 1.0 fix 2 all npt temp 0.045 0.045 1.0 iso 0.0018 0.0018 1.0 neigh_modify exclude molecule dimer fix 5 all enforce2d —————————————————————————————————————————————————————————————————————————— output file 就這樣: ———————————————————————————————————————————————————————————————————————— LAMMPS (9 Nov 2011) Reading restart file ... orthogonal box = (0 0 0) to (357.77 357.77 2.2) 1 by 5 by 1 processor grid 6400 atoms 3200 bonds Finding 1-2 1-3 1-4 neighbors ... 1 = max # of 1-2 neighbors 0 = max # of 1-3 neighbors 0 = max # of 1-4 neighbors 1 = max # of special neighbors 6400 atoms in group dimer 3200 rigid bodies with 6400 atoms WARNING: One or more atoms are time integrated more than once (modify.cpp:240) Setting up run ... Memory usage per processor = 4.26651 Mbytes Step Temp Press Volume Enthalpy PotEng KinEng TotEng Lx Ly Lz Atoms 11000000 0.045404677 -0.0048495 127999.37 -0.16623931 -0.1032962 0.034046413 -0.069249787 357.77 357.77 2.2 6400 11001000 0.035714946 0.0025690215 149326.3 -0.030062248 -0.11678389 0.026780629 -0.090003259 386.42761 386.42761 2.2 6400 11002000 0.030264793 0.0023758957 176161.74 -0.033412274 -0.12150331 0.022693866 -0.098809449 419.71626 419.71626 2.2 6400 11003000 0.029004975 0.0022623105 192742.28 -0.033463396 -0.12334429 0.021749199 -0.1015951 439.02424 439.02424 2.2 6400 11004000 0.028354983 0.0022907102 208286.37 -0.028235237 -0.12404763 0.021261807 -0.10278582 456.38402 456.38402 2.2 6400 11005000 0.02802591 0.0023240801 230934.88 -0.019681906 -0.12455808 0.021015054 -0.10354302 480.55684 480.55684 2.2 6400 11006000 0.027851188 0.0022193808 248575.1 -0.017691289 -0.12477576 0.020884039 -0.10389173 498.57306 498.57306 2.2 6400 11007000 0.027480945 0.0022516638 249899.94 -0.015969955 -0.12449678 0.020606415 -0.10389037 499.89993 499.89993 2.2 6400 11008000 0.027463389 0.0022537957 268442.03 -0.0096305365 -0.12475714 0.020593251 -0.10416389 518.11391 518.11391 2.2 6400 ———————————————————————————————————————————————————————————————————————————————— 多謝各位大神。。。 ![]() |
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