fix_addforce.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 addforce command
	</H3>
	<P><B>Syntax:</B>
	</P>
	<PRE>fix ID group-ID addforce fx fy fz
	</PRE>
	<UL><LI>ID, group-ID are documented in <A HREF = "fix.html">fix</A> command
	<LI>addforce = style name of this fix command
	<LI>fx,fy,fz = force component values (force units)
	</UL>
	<P><B>Examples:</B>
	</P>
	<PRE>fix kick flow addforce 1.0 0.0 0.0
	</PRE>
	<P><B>Description:</B>
	</P>
	<P>Add fx,fy,fz to the corresponding component of force for each atom in
	the group. This command can be used to give an additional push to
	atoms in a simulation, such as for a simulation of Poiseuille flow in
	a channel.
	</P>
	<P>The forces due to this fix are also imposed during an energy
	minimization, invoked by the <A HREF = "minimize.html">minimize</A> command.
	</P>
	<P><B>Restrictions:</B> none
	</P>
	<P><B>Related commands:</B>
	</P>
	<P><A HREF = "fix_setforce.html">fix setforce</A>, <A HREF = "fix_aveforce.html">fix aveforce</A>
	</P>
	<P><B>Default:</B> none
	</P>
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