forked from lijiext/lammps
54 lines
1.7 KiB
HTML
54 lines
1.7 KiB
HTML
<HTML>
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<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>
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<HR>
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<H3>compute smd/ulsph_num_neighs command
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</H3>
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<P><B>Syntax:</B>
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</P>
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<PRE>compute ID group-ID smd/ulsph_num_neighs
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</PRE>
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<UL><LI>ID, group-ID are documented in <A HREF = "compute.html">compute</A> command
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<LI>smd/ulsph_num_neighs = style name of this compute command
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</UL>
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<P><B>Examples:</B>
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</P>
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<PRE>compute 1 all smd/ulsph_num_neighs
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</PRE>
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<P><B>Description:</B>
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</P>
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<P>Define a computation that returns the number of neighbor particles
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inside of the smoothing kernel radius for particles interacting via the updated Lagrangian SPH pair style.
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</P>
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<P>See <A HREF = "USER/smd/SMD_LAMMPS_userguide.pdf">this PDF guide</A> to using Smooth Mach Dynamics in LAMMPS.
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</P>
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<P><B>Output info:</B>
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</P>
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<P>This compute returns a per-particle vector, which can be accessed by
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any command that uses per-particle values from a compute as input. See
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<A HREF = "Section_howto.html#howto_15">Section_howto 15</A> for an overview of
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LAMMPS output options.
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</P>
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<P>The per-particle values will be given dimentionless, see <A HREF = "units.html">units</A>.
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</P>
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<P><B>Restrictions:</B>
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</P>
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<P>This compute is part of the USER-SMD package. It is only enabled if
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LAMMPS was built with that package. See the <A HREF = "Section_start.html#start_2">Making LAMMPS</A>
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section for more info. This compute can only be used for particles which interact with the updated Lagrangian SPH pair style.
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</P>
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<P><B>Related commands:</B>
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</P>
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<P>smd/tlsph_num_neighs
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</P>
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<P><B>Default:</B> none
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</P>
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