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fix_lb_pc.html
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Tue, Nov 5, 00:31
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Thu, Nov 7, 00:31 (2 d)
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rLAMMPS lammps
fix_lb_pc.html
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<HTML>
<CENTER><A
HREF =
"http://lammps.sandia.gov"
>
LAMMPS WWW Site
</A>
-
<A
HREF =
"Manual.html"
>
LAMMPS Documentation
</A>
-
<A
HREF =
"Section_commands.html#comm"
>
LAMMPS Commands
</A>
</CENTER>
<HR>
<H3>
fix lb/pc command
</H3>
<P><B>
Syntax:
</B>
</P>
<PRE>
fix ID group-ID lb/pc
</PRE>
<UL><LI>
ID, group-ID are documented in the
<A
HREF =
"fix.html"
>
fix
</A>
command
<LI>
lb/pc = style name of this fix command
</UL>
<P><B>
Examples:
</B>
</P>
<PRE>
fix 1 all lb/pc
</PRE>
<P><B>
Description:
</B>
</P>
<P>
Update the positions and velocities of the individual particles
described by
<I>
group-ID
</I>
, experiencing velocity-dependent hydrodynamic
forces, using the integration algorithm described in
<A
HREF =
"#Mackay"
>
Mackay et
al.
</A>
. This integration algorithm should only be used if a
user-specified value for the force-coupling constant used in
<A
HREF =
"fix_lb_fluid.html"
>
fix
lb/fluid
</A>
has been set; do not use this integration
algorithm if the force coupling constant has been set by default.
</P>
<P><B>
Restart, fix_modify, output, run start/stop, minimize info:
</B>
</P>
<P>
No information about this fix is written to
<A
HREF =
"restart.html"
>
binary restart
files
</A>
. None of the
<A
HREF =
"fix_modify.html"
>
fix_modify
</A>
options
are relevant to this fix. No global or per-atom quantities are stored
by this fix for access by various
<A
HREF =
"Section_howto.html#4_15"
>
output
commands
</A>
. No parameter of this fix can be
used with the
<I>
start/stop
</I>
keywords of the
<A
HREF =
"run.html"
>
run
</A>
command.
This fix is not invoked during
<A
HREF =
"minimize.html"
>
energy minimization
</A>
.
</P>
<P><B>
Restrictions:
</B>
</P>
<P>
This fix is part of the USER-LB package. It is only enabled if LAMMPS
was built with that package. See the
<A
HREF =
"Section_start.html#start_3"
>
Making
LAMMPS
</A>
section for more info.
</P>
<P>
Can only be used if a lattice-Boltzmann fluid has been created via the
<A
HREF =
"fix_lb_fluid.html"
>
fix lb/fluid
</A>
command, and must come after this
command.
</P>
<P><B>
Related commands:
</B>
</P>
<P><A
HREF =
"fix_lb_fluid.html"
>
fix lb/fluid
</A>
<A
HREF =
"fix_lb_rigid_pc_sphere.html"
>
fix
lb/rigid/pc/sphere
</A>
</P>
<P><B>
Default:
</B>
None.
</P>
<HR>
<A
NAME =
"Mackay"
></A>
<P><B>
(Mackay et al.)
</B>
Mackay, F. E., Ollila, S.T.T., and Denniston, C., Hydrodynamic Forces Implemented into LAMMPS through a lattice-Boltzmann fluid, Computer Physics Communications 184 (2013) 2021-2031.
</P>
</HTML>
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