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标题:
求助Gromacs自带smooth wall使用
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作者Author:
dbxhtw
时间:
2026-1-6 18:16
标题:
求助Gromacs自带smooth wall使用
求问各位老师,我想用gromacs自带的墙来模拟受限水溶液,体系是z方向上下各有两个wall,中间夹层是水溶液
但wall_atomtype的选项只能对一个原子类型施加,我的体系里有其他分子,也都应该受到smooth wall的作用,我设置wall_atomtype=水分子中的O,可以对其他分子也进行限制吗
目前我的设置是:
integrator = md
dt = 0.001
nsteps = 10000000
nstxout = 5000
nstvout = 5000
nstfout = 5000
nstenergy = 5000
nstlog = 5000
continuation = no
constraint_algorithm = lincs ; holonomic constraints
constraints = h-bonds
lincs_iter = 1
lincs_order = 4
nstlist = 5
ns-type = Grid
pbc = xy
rlist = 1.0
cutoff-scheme = Verlet
coulombtype = PME
pme_order = 4
fourierspacing = 0.16
rcoulomb = 1.0
vdw-type = Cut-off
rvdw = 1.0
ewald-geometry = 3dc
wall_type = 9-3
wall_atomtype = OWT4 OWT4
nwall = 2
wall_density = 1000 1000
Tcoupl = Nose-Hoover
tc-grps = water non-water
tau_t = 0.1 0.1
ref_t = 260 260
Pcoupl = Berendsen
Pcoupltype = Isotropic
tau_p = 1.0
compressibility = 4.5e-5
ref_p = 1.0
作者Author:
sobereva
时间:
2026-1-7 04:16
“但wall_atomtype的选项只能对一个原子类型施加” 这是完全错误理解。wall_atomtype设的是虚拟墙上的原子用的原子类型,而不是作用到体系里哪些原子上。所有原子都会感受到wall的势。
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