Syntax:
fix ID group-ID addforce fx fy fz
Examples:
fix kick flow addforce 1.0 0.0 0.0
Description:
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.
Restart, fix_modify, thermo output, run start/stop, minimize info:
No information about this fix is written to binary restart files. None of the fix_modify options are relevant to this fix. No quantities calculated by this fix can be output by the thermo_style custom command. No parameter of this fix can be used with the start/stop keywords of the run command.
The forces due to this fix are imposed during an energy minimization, invoked by the minimize command.
Restrictions: none
Related commands:
Default: none