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lammps/doc/src/compute_pressure_uef.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
compute pressure/uef command :h3
[Syntax:]
compute ID group-ID pressure/uef temp-ID keyword ... :pre
ID, group-ID are documented in "compute"_compute.html command
pressure/uef = style name of this compute command
temp-ID = ID of compute that calculates temperature, can be NULL if not needed
zero or more keywords may be appended
keyword = {ke} or {pair} or {bond} or {angle} or {dihedral} or {improper} or {kspace} or {fix} or {virial} :ul
[Examples:]
compute 1 all pressure/uef my_temp_uef
compute 2 all pressure/uef my_temp_uef virial :pre
[Description:]
This command is used to compute the pressure tensor in
the reference frame of the applied flow field when
"fix nvt/uef"_fix_nh_uef.html" or
"fix npt/uef"_fix_nh_uef.html" is used.
It is not necessary to use this command to compute the scalar
value of the pressure. A "compute pressure"_compute_pressure.html
may be used for that purpose.
The keywords and output information are documented in
"compute_pressure"_compute_pressure.html.
[Restrictions:]
This fix is part of the USER-UEF package. It is only enabled if
LAMMPS was built with that package. See the
"Making LAMMPS"_Section_start.html#start_3 section for more info.
This command can only be used when "fix nvt/uef"_fix_nh_uef.html
or "fix npt/uef"_fix_nh_uef.html is active.
The kinetic contribution to the pressure tensor
will be accurate only when
the compute specificed by {temp-ID} is a
"compute temp/uef"_compute_temp_uef.html.
[Related commands:]
"compute pressure"_compute_pressure.html,
"fix nvt/uef"_fix_nh_uef.html,
"compute temp/uef"_compute_temp_uef.html
[Default:] none
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