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ÎÒÊǼÆËãÒ»¸öʯīϩÄÉÃ×´ø300kϵÄÈȵ¼ÂÊ ÏÂÃæÊÇÎÒµÄinÎļþ ²»ÖªµÀΪʲôÌåϵ¾ÍÊÇ´ï²»µ½Æ½ºâ ÕûÌåζÈÒ»Ö±ÔÚ285µ½315Ö®¼äÕðµ´ ¾Ö²¿Î¶ÈÕðµ´·¶Î§¸ü´ó ÇëÎÊÎÒ¸ÃÔõô×ö ÊÇʲôÎÊÌâ ÔõôÑù²ÅÄÜÈÃÌåϵ³ÚÔ¥´ïµ½Æ½ºâ×´Ì¬ÄØ ÇóÖ¸½Ì£¡ ¸½¼þÊǼÆËãµÄlogÎļþ boundary s s s units metal dimension 3 atom_style atomic atom_modify map array neighbor 2.0 nsq read_data data.graphene1550 pair_style airebo 3.0 1 0 pair_coeff * * CH.airebo C region box block 0.0 112.311 0.0 36.900 0.0 0.5 units box region begin block 7.21 8.63 INF INF INF INF units box region hot block 8.63 17.152 INF INF INF INF units box region a block 17.152 25.674 INF INF INF INF units box region b block 25.674 34.195 INF INF INF INF units box region c block 34.195 42.717 INF INF INF INF units box region d block 42.717 51.239 INF INF INF INF units box region e block 51.239 59.76 INF INF INF INF units box region e1 block 59.76 68.282 INF INF INF INF units box region d1 block 68.282 76.804 INF INF INF INF units box region c1 block 76.804 85.325 INF INF INF INF units box region b1 block 85.325 93.847 INF INF INF INF units box region a1 block 93.847 102.369 INF INF INF INF units box region cold block 102.369 110.891 INF INF INF INF units box region end block 110.891 112.311 INF INF INF INF units box region boundary union 2 begin end units box group begin region begin group hot region hot group a region a group b region b group c region c group d region d group e region e group e1 region e1 group d1 region d1 group c1 region c1 group b1 region b1 group a1 region a1 group cold region cold group end region end group boundary region boundary group 1 subtract all boundary velocity 1 create 300 7986875 rot yes dist gaussian units box velocity begin set 0.0 0.0 0.0 units box velocity end set 0.0 0.0 0.0 units box fix 1 begin setforce 0.0 0.0 0.0 fix 2 end setforce 0.0 0.0 0.0 fix a 1 nvt temp 300 300 0.025 compute ke 1 ke/atom variable temp atom c_ke*1.6e+4/(1.5*1.38) fix temp_profile 1 ave/spatial 1 100000 100000 x (0,0,0) 2.10202 v_temp file temp.profile units box compute c_temp c temp compute c1_temp c1 temp compute 1_temp 1 temp variable delta_temp equal c_c_temp-c_c1_temp fix delta_out 1 ave/time 1 100000 100000 v_delta_temp file delta_temp.dat thermo_style custom step c_1_temp etotal pe ke c_c_temp c_c1_temp #thermo_modify lost warn timestep 0.0005 thermo 1000 dump 1 all xyz 100 g.xyz unfix a fix 3 1 nve fix hot all heat 1 1 region hot fix cold all heat 1 -1 region cold variable thermal_conductivity equal 1*1.6e-19*40.448*1e-10/(36.9*3.4*1e-20*f_delta_out*1e-12) fix thermal_conductivity_out all ave/time 100000 1 100000 v_thermal_conductivity file thermal_conductivity.dat #run 5000000 |
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