I am trying to simulate an impact damper using DEM.
I used fix/wall/gran to create a granular wall around a spherical ball at the centre. I used ‘wiggle’ to move walls and can successfully simulate the interaction of the sphere with walls.
Here, fix/wall/gran creates a wall of infinite mass. Hence the position and velocity of wall doesn’t change while it interacts with particles, it only restricts to the amplitude and frequency defined in ‘wiggle command’
I want to create a wall of some mass (m) and update the position and velocity of the wall and the particles at every interaction. At every interaction, momentum exchanged should be with wall as well with the particle.
I read about other wall options where we can create walls made up of particles, but couldn’t find a way on how to move wall particles at every interaction with the ‘spherical’ ball at the centre.
Thanks any help with this will be highly appreciated.