Description: I am interested in tracking the energy dissipated in collisions due to heat generation / sound / other losses in the context of a system involving multiple particles and a moving geometry mesh boundary. By tracking collisions in EDEM, I have extracted the normal/tangential/total 'Energy Loss' attributes of each collision, which are positive for particle-particle collisions, but they can be negative for particle-wall collisions. I understand that this is because 'Energy Loss' is calculated as the change in particle energy before and after a collision, and the moving mesh boundary can impart energy onto a particle. For those such particle-wall collisions, how could I calculate the energy that is lost to heat / sound / other losses (i.e., dissipation energy)?
I tried using the EDEM Energy Dissipation API posted in this community Q&A, but its outputs (as far as I could tell) lumped the information of all collisions between selected timesteps together to generate summary histograms and total system energy dissipation values. How can I retrieve the dissipation energies corresponding to each collision event that occurs in the simulation, such that the dissipation energies could be associated with the collision ID (and accordingly the coordinates, relative velocity, and involved particles of the collision)?
Product/Topic Name : EDEM v2025.0
