Dear experts, I am trying to educate myself about the number 3/10 used to scale the rotational damping parameter. I don’t see any reference for such scaling on its page. I know in literature people use Dr = 3Dt / size^2, for simulations of spherical colloidal suspension. Is this 3/10 about the relation between rotational and translational diffusion coefficients? 1 post…

Greetings, I am a new user of LAMMPS and still learning how to use it. I am trying to use bonded particle model to simulate the stretching of a beam. Atoms(337:368) are used to simulate the boundary conditions, so the beam will stretch along x direction. However, I did not get the desired results. The computed force does not equal to stiffness times change of distance between t…

Hello, I am trying to compute the thermal conductivity of a polymer composite using fix thermal/conductivity command. The command runs like this: fix thermal all thermal/conductivity 300 z 100 thermo_style custom step temp pe ke etotal press lx ly lz f_thermal run 7000000 The simulation is running as I see from the trajectory file but the value of f_thermal is 0. I am pasting …