[lammps-users] fix langevin and momentum command

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1

Dear,

fix 1 all momentum N linear 1 1 1 angular

I want to know whether the fix_momentum command can change langevin dynamics and give a wrong result when used together or not. How can I choose a suitable value of N.

Any suggestions?

Thanks in advance.

2

Unless your system is being driven in a direction,
it should need little (or no) momentum correction.
So it shouldn't mess up Langevin. You can also
use a large N if it doesn't seem to be drifting.

Steve