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lammps/doc/fix_gran_diag.txt
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fix_gran_diag.txt
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"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Section_commands.html#comm)
:line
fix gran/diag command :h3
[Syntax:]
fix ID group-ID gran/diag nevery file layer :pre
ID, group-ID are documented in "fix"_fix.html command
gran/diag = style name of this fix command
nevery = compute diagnostics every this many timesteps
file = filename to store diagnostic info in
layer = bin size in z-dimension (3d) or y-dimension (2d) :ul
[Examples:]
fix 1 all gran/diag 1000 tmp 0.9 :pre
[Description:]
Compute aggregate density, velocity, and stress diagnostics for a
group of granular atoms as a function of depth in the granular system.
"Depth" means the z-dimension for a 3d simulation, and the y-dimension
for a 2d simulation. The results are written to 3 files named
file.den, file.vel, and file.str. The bins begin at the bottom of the
system and extend upward with a thickness of {layer} for each bin.
The quantities written to the file are averaged over all atoms in the
bin.
[Restart, fix_modify, thermo output, run start/stop, minimize info:]
No information about this fix is written to "binary restart
files"_restart.html. None of the "fix_modify"_fix_modify.html options
are relevant to this fix. No quantities calculated by this fix can be
output by the "thermo_style custom"_thermo_style.html command. No
parameter of this fix can be used with the {start/stop} keywords of
the "run"_run.html command. This fix is not invoked during "energy
minimization"_minimize.html.
[Restrictions:]
This fix is part of the "granular" package. It is only enabled if
LAMMPS was built with that package. See the "Making
LAMMPS"_Section_start.html#2_3 section for more info.
[Related commands:]
"atom_style granular"_atom_style.html
[Default:] none
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