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variable    t equal 303
variable    p equal 1000     # correlation length
variable    s equal 8      # sample interval
variable    d equal $p*$s   # dump interval
variable    kB equal 1.3806504e-23    # [J/K] Boltzmann
variable    kCal2J equal 6.948e-21
variable    A2m equal 1.0e-10
variable    fs2s equal 1.0e-15
variable    convert equal ${kCal2J}*${kCal2J}/${fs2s}/${A2m}
# setup problem
units                real
atom_style         full
boundary p p p
read_data 1.data
region     1 block  INF  INF  INF  INF   INF    INF      units  box
group   flow  region 1
#----- initialization -----
minimize  1.0e-6  1.0e-8  1000  1000
velocity  flow  create  303  9567969  
#-----relax  process-----   
# 1st equilibration run
fix 1 flow npt temp 303 303 100  iso  0 0  1000
thermo_style  custom  step  temp  pe  etotal  lz
thermo  10000
run  100000
velocity        flow scale $t
# thermal conductivity calculation
unfix 1
fix 1 flow npt temp 303 303 100  iso 1 1  1000
thermo_style  custom  step  temp  pe  etotal  lz
thermo  10000
run  200000
velocity        flow scale $t
reset_timestep  0
compute         myKE flow ke/atom
compute         myPE flow pe/atom
compute         myStress flow stress/atom NULL virial
compute         flux flow heat/flux myKE myPE myStress
variable        Jx equal c_flux[1]/vol
variable        Jy equal c_flux[2]/vol
variable        Jz equal c_flux[3]/vol
fix             JJ flow ave/correlate $s $p $d &
                c_flux[1] c_flux[2] c_flux[3] type auto &
                file profile.heatflux ave running
variable        scale equal  ${convert}/${kB}*$s*dt/$t/$t/vol
variable        k11 equal trap(f_JJ[3])*${scale}
variable        k22 equal trap(f_JJ[4])*${scale}
variable        k33 equal trap(f_JJ[5])*${scale}
variable        k44 equal (v_k11+v_k22+v_k33)/3
thermo                $d
thermo_style    custom step temp v_Jx v_Jy v_Jz v_k11 v_k22 v_k33 v_k44
run             1400000
variable        kappa equal (v_k11+v_k22+v_k33)/3.0
print           "running average conductivity: ${kappa}"


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