Large amplitude standing surface waves and 0-node arching.
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vibration frequency:  25 Hz <BR>
vibration acceleration amplitude:  6.0g <BR>
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Number of particles:  4000 <BR>
particle shape:  circular <BR>
particle density:  2500 kg/m^3 <BR>
particle diameters:  0.9 - 1.1 mm (uniform distribution) <BR>
particle/particle normal coefficient of restitution:  0.7 <BR>
particle/wall normal coefficient of restitution:  0.7 <BR>
particle/particle friction coefficient:  0.0 <BR>
particle/wall friction coefficient:  0.0 <BR>
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container width:  200.0 mm <BR>
periodic boundaries at left and right boundaries <BR>
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duration of binary particle/particle collision:  3.731e-05 sec <BR>
duration of binary particle/wall collision:  3.731e-05 sec <BR>
simulation time step:  3.731e-06 sec <BR>
<P>
Normal contact model:  damped linear spring <BR>
Tangential contact model:  none <BR>
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