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"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Section_commands.html#comm)
:line
dihedral_style hybrid command :h3
[Syntax:]
dihedral_style hybrid style1 style2 ... :pre
style1,style2 = list of one or more dihedral styles :ul
[Examples:]
dihedral_style hybrid harmonic helix
dihedral_coeff 1 harmonic 6.0 1 3
dihedral_coeff 2 helix 10 10 10 :pre
[Description:]
The {hybrid} style enables the use of multiple dihedral styles in one
simulation. An dihedral style is assigned to each dihedral type. For
example, dihedrals in a polymer flow (of dihedral type 1) could be
computed with a {harmonic} potential and dihedrals in the wall
boundary (of dihedral type 2) could be computed with a {helix}
potential. The assignment of dihedral type to style is made via the
"dihedral_coeff"_dihedral_coeff.html command or in the data file.
In the dihedral_coeff command, the first coefficient sets the dihedral
style and the remaining coefficients are those appropriate to that
style. In the example above, the 2 dihedral_coeff commands would set
dihedrals of dihedral type 1 to be computed with a {harmonic}
potential with coefficients 80.0, 1.2 for K, d, n. Dihedral type 2
would be computed with a {helix} potential with coefficients 10.0,
10.0, 10.0 for A, B, C.
A dihedral style of {none} can be specified as an argument to
dihedral_style hybrid and the corresponding dihedral_coeff commands,
if you desire to turn off certain dihedral types.
[Restrictions:] none
[Related commands:]
"dihedral_coeff"_dihedral_coeff.html
[Default:] none
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