forked from lijiext/lammps
65 lines
1.8 KiB
HTML
65 lines
1.8 KiB
HTML
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<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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</CENTER>
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<HR>
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<H3>pair_style sph/rhosum command
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</H3>
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<P><B>Syntax:</B>
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</P>
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<PRE>pair_style sph/rhosum nstep
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</PRE>
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<P>nstep = timestep interval
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</P>
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<P><B>Examples:</B>
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</P>
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<P>pair_style sph/rhosum 10
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pair_coeff * * 2.4
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</P>
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<P><B>Description:</B>
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</P>
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<P>The sph/rhosum style computes the local particle mass density rho by kernel function interpolation,
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see the SPH-USER documentation.
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</P>
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<P>The following coefficients must be defined for each pair of atoms
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types via the <A HREF = "pair_coeff.html">pair_coeff</A> command as in the examples
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above.
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</P>
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<P>h (distance units)
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</P>
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<HR>
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<P><B>Mixing, shift, table, tail correction, restart, rRESPA info</B>:
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</P>
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<P>These pair styles do not support mixing. Thus, coefficients for all
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I,J pairs must be specified explicitly.
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</P>
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<P>This style does not write information to <A HREF = "restart.html">binary restart
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files</A>, so pair_style and pair_coeff commands do need
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to be specified in an input script that reads a restart file.
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</P>
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<P>These styles can only be used via the <I>pair</I> keyword of the <A HREF = "run_style.html">run_style
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respa</A> command. They do not support the <I>inner</I>,
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<I>middle</I>, <I>outer</I> keywords.
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</P>
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<P><B>Restrictions:</B>
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</P>
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<P>The <I>pair sph/rhosum</I> style is part of the "USER-SPH" package. It is
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only enabled if LAMMPS was built with that package (which it is by
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default). See the <A HREF = "Section_start.html#2_3">Making LAMMPS</A> section for
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more info.
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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 = "pair_coeff.html">pair_coeff</A>, pair_sph/taitwater
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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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