dear all,
is there a way to remove the pressure within a region in my simulation box? Let’s say I have a metal of size xyz=100x10x10 unit cells with periodic boundaries along y and z and fixed boundaries along x . A shock wave starts at one end of the box and travels through the material. As I intend to simulate “bulk-like” behavior, I don’t want the wave to be reflected when it hits the surface at the other end, the pressure should rather be removed somehow along X. My first idea was simple, linear damping of atomic velocities along x-direction. Still, the simulation box has to be quite large along x and more importantly this seems quite non-physical as I’m cooling the damping region. Do you know of any method which can solve my problem?
best regards,
frank.