log water.log

variable nstepsequil equal 500000
variable nsteps equal 1000#2500000
variable temp equal 300.0
variable tdamp equal 0.100
variable x_dim equal 20
variable y_dim equal 20
variable z_fluid equal 30
variable efieldz equal -5
variable seed equal 868026
variable x_max equal ${x_dim}/2
variable y_max equal ${y_dim}/2
variable fluid_half_thickness equal ${z_fluid}/2
#variable zmaxatc equal ${fluid_half_thickness}
#variable zmaxsub equal ${zmaxatc}-0.1
#variable zmaxsup equal ${zmaxatc}+0.1

units metal
atom_style full
dimension 3
newton off
neighbor 2 bin
neigh_modify every 1 delay 3 check yes 
boundary p p p
kspace_style pppm 1e-4
pair_style lj/cut/coul/long 13.0 9.0 
bond_style harmonic
angle_style harmonic
#read_data waterbox.dat # for equilibration
read_data water.init

lattice sc 0.05

region ATC block EDGE EDGE EDGE EDGE EDGE EDGE units box
#variable nelem equal round(2*${zmaxatc}/0.05)
variable nelem equal 1

group water type 1 2
group hyd type 1
group oxy type 2

timestep 0.0005
thermo 100

thermo_style custom step temp epair emol etotal press

dielectric 1.0

pair_coeff 1 * 0.0 0.0
pair_coeff 2 2 0.006596 3.1507
bond_coeff 1 19.513855 0.957200

angle_coeff 1 2.385027 104.519997

special_bonds amber

# assign SHAKE fixes
##fix 1 water shake  0.01 3 0 b 1 a 1

#velocity all create 0.0 1 rot yes dist uniform # for equilibration

variable dumpfreq equal 100

dump 1 all atom 500 waterequil.dump
dump_modify 1 image yes scale no flush yes

fix 2 all nvt temp ${temp} ${temp} ${tdamp}


fix press_avetime all ave/time 10 1 10 c_thermo_press ave running file pressdata.log

#run ${nstepsequil}

fix efield all efield 0. 0. v_efieldz

#run ${nstepsequil}

unfix 2
#fix 3 all nve

fix AtC all atc species_electrostatic water.mat
fix_modify AtC mesh create 1 1 ${nelem} ATC p p p
fix_modify AtC atom_element_map eulerian ${dumpfreq}
fix_modify AtC internal_quadrature off
fix_modify AtC atom_weight multiscale
fix_modify AtC add_species Hyd type 1
fix_modify AtC add_species Oxy type 2
fix_modify AtC add_molecule small Water water
fix_modify AtC fix electric_potential all 0.
fix_modify AtC extrinsic short_range off
fix_modify AtC output waterFE ${dumpfreq} text binary

run ${nsteps}

#write_restart water.restart # for equilibration