adding friction to the system

Hi,

Is there any way to add a friction force to the particles?

I have few particles which are moving by an electric force and I want to check if they are following the electric field lines which I expect. Currently, I’m not sure about this issue because they may have accelerated by the electric force.

thanks

Hi,

Is there any way to add a friction force to the particles?

http://lammps.sandia.gov/doc/fix_viscous.html