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fix_eos_cv.html
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Fri, Jun 20, 21:15

fix_eos_cv.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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<H3>fix eos/cv command
</H3>
<P><B>Syntax:</B>
</P>
<PRE>fix ID group-ID eos/cv cv
</PRE>
<UL><LI>ID, group-ID are documented in <A HREF = "fix.html">fix</A> command
<LI>eos/cv = style name of this fix command
<LI>cv = constant-volume heat capacity (energy/temperature units)
</UL>
<P><B>Examples:</B>
</P>
<PRE>fix 1 all eos/cv 0.01
</PRE>
<P><B>Description:</B>
</P>
<P>Fix <I>eos/cv</I> applies a mesoparticle equation of state to relate the
particle internal energy (u_i) to the particle internal temperature
(dpdTheta_i). The <I>eos/cv</I> mesoparticle equation of state requires
the constant-volume heat capacity, and is defined as follows:
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<CENTER><IMG SRC = "Eqs/fix_eos-cv.jpg">
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<P>where Cv is the constant-volume heat capacity, u_cond is the internal
conductive energy, and u_mech is the internal mechanical energy. Note
that alternative definitions of the mesoparticle equation of state are
possible.
</P>
<HR>
<P><B>Restrictions:</B>
</P>
<P>The fix <I>eos/cv</I> is only available if LAMMPS is built with the
USER-DPD package.
</P>
<P><B>Related commands:</B>
</P>
<P><A HREF = "fix_shardlow.html">fix shardlow</A>, <A HREF = "pair_dpd_fdt.html">pair dpd/fdt</A>
</P>
<P><B>Default:</B> none
</P>
<HR>
<A NAME = "Larentzos"></A>
<P><B>(Larentzos)</B> J.P. Larentzos, J.K. Brennan, J.D. Moore, and
W.D. Mattson, "LAMMPS Implementation of Constant Energy Dissipative
Particle Dynamics (DPD-E)", ARL-TR-6863, U.S. Army Research
Laboratory, Aberdeen Proving Ground, MD (2014).
</P>
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