2006-09-22 00:22:34 +08:00
|
|
|
"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
|
|
|
|
|
|
|
|
angle_style cosine command :h3
|
|
|
|
|
|
|
|
[Syntax:]
|
|
|
|
|
|
|
|
angle_style cosine :pre
|
|
|
|
|
|
|
|
[Examples:]
|
|
|
|
|
|
|
|
angle_style cosine
|
|
|
|
angle_coeff * 75.0 :pre
|
|
|
|
|
|
|
|
[Description:]
|
|
|
|
|
|
|
|
The {cosine} angle style uses the potential
|
|
|
|
|
|
|
|
:c,image(Eqs/angle_cosine.jpg)
|
|
|
|
|
|
|
|
where K is defined for each angle type.
|
|
|
|
|
|
|
|
The following coefficients must be defined for each angle type via the
|
|
|
|
"angle_coeff"_angle_coeff.html command as in the example above, or in
|
|
|
|
the data file or restart files read by the "read_data"_read_data.html
|
|
|
|
or "read_restart"_read_restart.html commands:
|
|
|
|
|
|
|
|
K (energy) :ul
|
|
|
|
|
2006-09-28 03:12:31 +08:00
|
|
|
[Restrictions:] none
|
2006-09-22 00:22:34 +08:00
|
|
|
|
|
|
|
[Related commands:]
|
|
|
|
|
|
|
|
"angle_coeff"_angle_coeff.html
|
|
|
|
|
|
|
|
[Default:] none
|