2006-09-22 00:22:34 +08:00
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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>fix gran/diag command
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</H3>
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<P><B>Syntax:</B>
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</P>
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<PRE>fix ID group-ID gran/diag nevery file zlayer
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</PRE>
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<UL><LI>ID, group-ID are documented in <A HREF = "fix.html">fix</A> command
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<LI>gran/diag = style name of this fix command
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<LI>nevery = compute diagnostics every this many timesteps
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<LI>file = filename to store diagnostic info in
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<LI>zlayer = bin size in z dimension
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</UL>
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<P><B>Examples:</B>
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</P>
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<PRE>fix 1 all gran/diag 1000 tmp 0.9
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</PRE>
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<P><B>Description:</B>
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</P>
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<P>Compute aggregate density, velocity, and stress diagnostics for a
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group of granular atoms as a function of z depth in the granular
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system. The results are written to 3 files named file.den, file.vel,
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and file.str. The z bins begin at the bottom of the system and extend
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2007-02-17 05:06:13 +08:00
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upward with a thickness of <I>zlayer</I> for each bin. The quantities
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2006-09-22 00:22:34 +08:00
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written to the file are averaged over all atoms in the bin.
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</P>
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<P><B>Restrictions:</B>
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</P>
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<P>Can only be used if LAMMPS was built with the "granular" package. Can
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only be used with atom_style granular.
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</P>
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<P><B>Related commands:</B>
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</P>
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<P><A HREF = "atom_style.html">atom_style granular</A>
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</P>
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<P><B>Default:</B> none
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</P>
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</HTML>
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