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cuteCarl

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[ÇóÖú] lammps ÖÜÆÚ±ß½çÌõ¼þΪɶ»áÔ­×Ó¶ªÊ§°¡

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echo           screen
dimension      3
boundary       p p fm
units          metal

atom_style     atomic
neighbor       2.0 bin
neigh_modify   every 1 delay 5 check yes

region         box block 0.0 100.0 0.0 25.0 0.0 200.0
create_box     2 box

region         wall_down block 0.0 100.0 0.0 25.0 0.0 10.0
region         wall_up block 0.0 100.0 0.0 25.0 190.0 200.0
region         wall_shape1 cone z 12.5 12.5 10.0 0.0  10.0 20.0
region         wall_shape2 cone z 37.5 12.5 10.0 0.0  10.0 20.0
region         wall_shape3 cone z 62.5 12.5 10.0 0.0  10.0 20.0
region         wall_shape4 cone z 87.5 12.5 10.0 0.0  10.0 20.0
region         flow block 0.0 100.0 0.0 25.0 10.0 30.0

lattice        fcc 5.738
create_atoms   1 region flow

lattice        fcc 3.483
create_atoms   1 region wall_down
create_atoms   1 region wall_up
create_atoms   1 region wall_shape1   
create_atoms   1 region wall_shape2
create_atoms   1 region wall_shape3
create_atoms   1 region wall_shape4

mass           1 39.948
mass           2 39.948

pair_style     hybrid lj/cut  8.5  dpd/tstat  10.0  98.0  8.5 34387
pair_coeff     1 1 lj/cut 0.0103125 3.4
pair_coeff     1 2 lj/cut 0.0505    3.4
pair_coeff     2 2 lj/cut 0.00515625 3.4
pair_coeff     1 1 dpd/tstat 0.0672 8.5
comm_modify    vel yes

group 1 region wall_shape1
group 2 region wall_shape2
group 3 region wall_shape3
group 4 region wall_shape4
group 5 region wall_down
group 5 region wall_up
group wall union 1 2 3 4 5 6
group flow region flow
group Ar subtract all wall
set   group wall type 2

velocity flow create 86 482748 mom yes rot yes
fix      1 all nvt temp 10.0 98.0 0.02
compute  1 Ar chunk/atom bin/2d y lower 2 z lower 2 units box

velocity wall set 0.0 0.0 0.0
fix      2 wall setforce 0.0 0.0 0.0
fix      3 flow ave/chunk 100 5 500 1 density/mass file new.profile

timestep  0.005
thermo    20
thermo_style custom step temp pe press density etotal

dump      1 all custom 20 new.dump id x y z
run       310000

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ÓпÉÄÜÊÇ´ÓZ·½ÏòÅܳöÈ¥ÁË£¬Z·½ÏòÉÏÉèÖÃÒ»ÏÂwall/reflectÊÔÊÔ

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2Â¥2020-11-27 10:23:36
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cuteCarl

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ÒýÓûØÌû:
2Â¥: Originally posted by ¹þºÇѽ at 2020-11-27 10:23:36
ÓпÉÄÜÊÇ´ÓZ·½ÏòÅܳöÈ¥ÁË£¬Z·½ÏòÉÏÉèÖÃÒ»ÏÂwall/reflectÊÔÊÔ

ÔÙÇë½Ìһϣ¬ÎÒ¼ÓÁËfix 4 flow wall/reflect zhi 200.0»¹ÊDz»ÐУ¬ÊDz»ÊÇÎÒд´íÁË£¬ÎÒ¿´ÊÖ²áÊÇÕâÑùѽÐÂÊÖÌ«ÄÑÁË

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3Â¥2020-11-28 09:13:53
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