Discharge flow of granular media from rectangular silos: role of an obstacle and modelling by an orifice at the corner

Scientific challenges and industrial applications in mechanical engineering

Open Access

Fig. 4

Mass flow rate normalised by (a) and (b) as a functionof D∕d_p for various particle diameters. The large symbols represent experiments without obstacle. The small symbols represent experiments with obstacle far from the outlet h_O > D. The full line represents equation (1) with C = 1.15, α = 0.7 and β = 0.05. The dashed lines represent the asymptotic regime when D∕d_p ≫ 1.

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