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[ipemath <question267815@xxxxxxxxxxxxxxxxxxxxx>]

New question #267815 on Yade:
https://answers.launchpad.net/yade/+question/267815

I am doing a simulation of Projectile impact on a granular bed of spheres. I am not using any gravity, hence the initial energy is only the kinetic energy of the projectile. After impact, I am adding up the various energy contributions(Kinetic + Elastic+ damping dissipation+fric dissipation) from all the particles to form the final energy. What we have found is a missmatch between the initial and final energy. The final energy grows initially and it reaches a constant value, where it stays through out the simulation. The final energy value is higher than that of the inital energy. Another interesting fact we found was, the energy growth is time dependend. For the same simulation, we found lower final energy for smaller time. I request your help to sort out this anomaly. I wish I could upload the energy graphs. I will provide the script and the graphs if required. 

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