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wdliwei

铁杆木虫 (小有名气)

[求助] 为什么我的弛豫过程中碳纳米管的原子总是乱跑

npt弛豫过程:
thermo 500
thermo_style custom step temp cpu lx ly lz
velocity all create 300.0 23456789
fix 1 all npt temp 300 300 0.05 z 0.0 0.0 0.25 drag 0.2
run 10000
nvt弛豫过程:
thermo 500
thermo_style custom step temp cpu lx ly lz
velocity all create 300.0 23456789
fix 1 all npt temp 300.0 300.0 10.0 drag 0.2
run 10000

以上两种弛豫过程中原子都是乱跑,势能也换过tersoff和airebo,还是一样乱跑。

通过查看坐标发现管已不成形,下图的 lx ly lz一直在增大:

lx ly lz一直在增大

[ Last edited by ghcacj on 2011-10-31 at 12:01 ]
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fyuewen

金虫 (正式写手)

★
chaizhm: 金币+1, 谢谢~ 2012-04-03 18:38:40
引用回帖:
3240728楼: Originally posted by wdliwei at 2011-10-31 09:52:52:
npt弛豫过程:
thermo 500
thermo_style custom step temp cpu lx ly lz
velocity all create 300.0 23456789
fix 1 all npt temp 300 300 0.05 z 0.0 0.0 0.25 drag 0.2
run 10000
nvt弛豫过程:
thermo ...

觉得是势的问题
Physicsloveukulele!Aloha!
2楼2012-04-03 13:24:06
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superbuff

新虫 (初入文坛)

是不是没有定义键
时间就是用来浪费的,不是浪在这儿,就得费在那儿!
3楼2015-11-04 06:26:33
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