I’ve been trying to develop a simulation that can model a granular chute flow. I did an experimental investigation using sand, and in order to make a good comparison between my simulation and experimental data, I wanted to use values for Kn, Kt, gamma_n, gamma_t, and xmu that are appropriate for sand grains. I have read a couple of research papers, but I’ve yet to find anything specific to sand. Does anyone know what those parameters should be? Additionally, since I have been trying to imitate my physical setup, I have working in SI units; do I need to use LJ units in order to do this correctly?
Thank you very much for your help!