Dear lammps-users
I want to model a nanofluids system( Cu in Ar ). but I always get a error: ERROR: Expected floating point parameter in input script or data file (…/region_block.cpp:69). Is my modeling right? and how to solve this problem?
Looking forwarding your reply. Thanks.
Jack zhuang
My in document:
units real
dimension 3
boundary p p p
atom_style full
lattice fcc 5.72
region box block 0 10 0 10 0 10 units lattice
create_box 1 box
create_atoms 1 box
region sphere block 28.6 28.6 28.6 5 units box
delete_atoms region sphere
lattice fcc 3.615
create_atoms 2 region sphere
mass 1 39.948
mass 2 63.546
group ar type 1
group cu type 2
pair_style lj/cut 9.0
pair_coeff 1 1 0.2381 3.405
pair_coeff 2 2 9.4422 2.3377
pair_coeff 1 2 1.4994 2.87135
timestep 1
thermo 1000
------------- equilibration and thermalization ----------------
velocity all create $T 102486 mom yes rot yes dist gaussian
dump 1 all xyz 10000 ar.xyz
dump 2 all image 10000 image.*.PPM type type
run 1200000