Microstructure evolution in density relaxation by tapping.
The density relaxation phenomenon is modeled using both Monte Carlo and discrete element simulations to investigate the effects of regular taps applied to a vessel having a planar floor filled with monodisperse spheres. Results suggest the existence of a critical tap intensity which produces a maximum bulk solids fraction. We find that the mechanism responsible for the relaxation phenomenon is an evolving ordered packing structure propagating upwards from the plane floor.
Rosato
Anthony D
AD
Granular Science Laboratory, Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, USA.
Dybenko
Oleksandr
O
Horntrop
David J
DJ
Ratnaswamy
Vishagan
V
Kondic
Lou
L