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Vibrated granular media as experimentally realizable Granular Gases

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Figure

Fig. 1. The restitution coefficient r as a function of impact velocity v, as given in Eq
Fig. 2. Time averaged pressure P on the top of the cell as a function of particle layer, n, for various vibration frequencies, f : (a) Experimental results from [1] for stainless steel beads 2 mm in diameter, with A = 25 mm, 10 ≤ f ≤ 20Hz with a 1 Hz step
Fig. 3. Snapshots from the simulations with n = 3, gravity g 6= 0, driving frequency f = 30 Hz and h − h 0 = 15 mm
Fig. 4. The exponents θ as a function of n which give the scaling of the granular temperature T (♦), collision frequency C upper (∗), mean impulsions ∆I (△) and pressure P (◦)
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