| 5 | 1/1 | 返回列表 |
| 查看: 2265 | 回復(fù): 8 | ||
| 當(dāng)前只顯示滿足指定條件的回帖,點(diǎn)擊這里查看本話題的所有回帖 | ||
[求助]
lammps 離子液體,離子中相鄰隔的挺遠(yuǎn)的原子成鍵了,不知什么原因
|
||
|
我在進(jìn)行模擬的時(shí)候,首先用兩個(gè)分子(四個(gè)離子)測(cè)試了,結(jié)構(gòu)非常好,沒(méi)啥異常。但是增多原子后,發(fā)現(xiàn)其中一個(gè)陰離子(tfsi-)中F原子和相隔非常遠(yuǎn)的O原子(相隔五個(gè)原子)成鍵了,從而使整個(gè)離子變的亂起八糟。 我檢查了力場(chǎng)參數(shù),采用的是opls—aa勢(shì),和文獻(xiàn)中一致,電荷也守恒。 想問(wèn)問(wèn)各位蟲(chóng)子,這個(gè)是什么原因呢?該怎么解決呢? 也不知怎么搞的,我遇到好多詭異的問(wèn)題。。。 |
木蟲(chóng) (小有名氣)
木蟲(chóng) (正式寫手)
|
我模擬的體系是emim陽(yáng)離子,和fsi陰離子。 我的in文件如下: LAMMPS input file units real boundary p p p atom_style full #uncharged molecules, with bond, angle, dihedral, improper dihedral bond_style harmonic angle_style harmonic dihedral_style opls improper_style cvff pair_style lj/cut/coul/long 12.0 pair_modify mix arithmetic tail yes kspace_style pppm 1.0e-4 #read_restart restart.mix.* read_data data.il #read_restart restart.mix.* #fix 1 all shake 0.0001 20 10 b 3 neighbor 2.0 bin neigh_modify delay 3 every 1 check yes #delay 3 velocity all create 300.0 4567712 rot yes dist gaussian compute 1 all temp #fix 2 all npt temp 300.0 300.0 100.0 iso 1.0 1.0 10.0 #fix 2 all langevin 300.0 300.0 200 48279 #fix 3 all nve fix 2 all nvt temp 300.0 300.0 50.0 minimize 1.0e-4 1.0e-6 100 1000 min_style cg min_modify dmax 0.2 timestep 0.05 dump 1 all custom 20 dump.atom.*.lammpstrj id x y z dump 2 all custom 200000 dump.force.* id mol type element fx fy fz #dump 3 all dcd 2000 dump.trj.lammpstrj dump_modify 1 flush yes dump_modify 2 flush yes #dump_modify 3 flush yes thermo_style custom step c_1 pe etotal vol lx ly lz thermo 1000 thermo_modify flush yes restart 100000 restart.mix.* run 100000 timestep 0.1 #thermo 1000 run 100000 我的log文件 24000 273.6706 272.92199 317.7888 125000 50 50 50 25000 325.54712 263.24033 316.61201 125000 50 50 50 26000 313.35585 255.15618 306.52916 125000 50 50 50 27000 3516.0726 1330.2863 1906.7272 125000 50 50 50 28000 1783.7174 315.87659 608.30734 125000 50 50 50 29000 1473.6364 568.98349 810.57815 125000 50 50 50 30000 1474.526 -32.645347 209.09516 125000 50 50 50 31000 671.23014 38.678556 148.72308 125000 50 50 50 32000 464.68752 -90.201486 -14.018499 125000 50 50 50 33000 11929.712 727.72594 2683.5372 125000 50 50 50 34000 1249.3459 -505.03535 -300.2119 125000 50 50 50 35000 6864.2858 180.49005 1305.8523 125000 50 50 50 36000 418.5098 -612.91378 -544.30138 125000 50 50 50 37000 174.50306 -677.42917 -648.82034 125000 50 50 50 38000 79.074924 -680.99101 -668.0271 125000 50 50 50 39000 149.36694 -684.89448 -660.40658 125000 50 50 50 40000 34276.857 762.54228 6382.0463 125000 50 50 50 41000 405.71061 -658.47541 -591.96137 125000 50 50 50 42000 52.579346 -689.37579 -680.7557 125000 50 50 50 43000 37.702359 -697.65724 -691.47615 125000 50 50 50 44000 77.636161 -698.36347 -685.63545 125000 50 50 50 45000 1068.4743 -541.76354 -366.593 125000 50 50 50 46000 769.90494 -593.81149 -467.58977 125000 50 50 50 47000 909.93159 -769.17108 -619.99276 125000 50 50 50 Rank 19 [Mon Feb 4 02:49:12 2013] [c13-3c2s3n1] application called MPI_Abort(MPI_COMM_WORLD, 1) - process 19 ERROR on proc 19: Bond atoms 26 27 missing on proc 19 at step 47662 (neigh_bond.cpp:49) 從第3000步開(kāi)始,能量突然驟減,我調(diào)出結(jié)構(gòu)圖來(lái)一看,是結(jié)構(gòu)出現(xiàn)了問(wèn)題 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 求材料調(diào)劑 +7 | 隔壁陳先生 2026-03-12 | 7/350 |
|
|---|---|---|---|---|
|
[教師之家] 焦慮 +8 | 水冰月月野兔 2026-03-13 | 12/600 |
|
|
[考研] 344求調(diào)劑 +5 | knight344 2026-03-16 | 6/300 |
|
|
[考研] 08工科 320總分 求調(diào)劑 +5 | 梨花珞晚風(fēng) 2026-03-17 | 5/250 |
|
|
[考研] 288求調(diào)劑,一志愿華南理工大學(xué)071005 +4 | ioodiiij 2026-03-17 | 4/200 |
|
|
[考研] 0703化學(xué)求調(diào)劑 總分331 +3 | ZY-05 2026-03-13 | 3/150 |
|
|
[考研] 296求調(diào)劑 +5 | 大口吃飯 身體健 2026-03-13 | 5/250 |
|
|
[考研] 290求調(diào)劑 +3 | p asserby. 2026-03-15 | 4/200 |
|
|
[論文投稿] 有沒(méi)有大佬發(fā)小論文能帶我個(gè)二作 +3 | 增銳漏人 2026-03-17 | 4/200 |
|
|
[考研] 267一志愿南京工業(yè)大學(xué)0817化工求調(diào)劑 +6 | SUICHILD 2026-03-12 | 6/300 |
|
|
[考研] 東南大學(xué)364求調(diào)劑 +5 | JasonYuiui 2026-03-15 | 5/250 |
|
|
[考研] 機(jī)械專碩325,尋找調(diào)劑院校 +3 | y9999 2026-03-15 | 5/250 |
|
|
[考研] 0703化學(xué)調(diào)劑 +6 | 妮妮ninicgb 2026-03-15 | 9/450 |
|
|
[考研] 0703一志愿211 285分求調(diào)劑 +5 | ly3471z 2026-03-13 | 5/250 |
|
|
[考研] 0856專碩279求調(diào)劑 +5 | 加油加油!? 2026-03-15 | 5/250 |
|
|
[考研] 0856材料與化工301求調(diào)劑 +5 | 奕束光 2026-03-13 | 5/250 |
|
|
[考研] 26調(diào)劑/材料科學(xué)與工程/總分295/求收留 +9 | 2026調(diào)劑俠 2026-03-12 | 9/450 |
|
|
[考研] 274求調(diào)劑 +3 | S.H1 2026-03-12 | 3/150 |
|
|
[考研] 求調(diào)劑 +3 | 程雨杭 2026-03-12 | 3/150 |
|
|
[考博] 26讀博 +4 | Rui135246 2026-03-12 | 10/500 |
|