Hello everyone,
I am working on liggghts, and I generated a particle packing in the geometry by command insert/stream, after particles become stationary in the bottom, i would like to make the packing position fixed and not be moved anymore. In other words, after packing formed, we treated it as a wall.
I tried the command fix freeze and fix setforce, but the particles not acted force tend to overlap with each other, and it is unexpected.
Do you know how to realize this ?
thanks.
Brian | Mon, 12/21/2020 - 13:17
Have you sorted the problem
Have you sorted the problem out? I tried to use fix freeze, the forces are zeroed out, but the velocity still has a non-zero value. As a result, the particles still move rather than being fixed. Could you advise which command should be used?
Best regards,
Brian
mschramm | Tue, 12/22/2020 - 02:54
velocity command then fix freeze
Hello,
use the velocity command to first zero out your velocity.
Once the particles have zero velocity, then you can use the fix freeze command
Brian | Sun, 01/03/2021 - 23:37
Thank you very much, Mschramm
Thank you very much, Mschramm