Question: Normal force and tangential force in EDEM calculation.

Hello everyone,

I have two questions about contact force：

1.I see in the help document this sentence：

I wonder if this means that when I use the H-M model, the normal force derived from edem does not include damping force? Is the tangential force the same? Or does the derived normal force and tangential force include spring force and damping force?

2.Does the tangential damping force participate in the torque calculation of particle rotation?

Thank you in advance for your answers!