About the mass flow rate in silos (INVITED)

Abstract eng:
Despite the massive use of silos in the manipulation or processing of industrial materials, the expression used to predict the mass discharged through its outlet is basically an empirical fitting founded on dimensional arguments [1, 2]. However, the physical origin of this process –which has received renewed interest due to the recent advances of the numerical tools – has not been completely developed until very recently. Thereby, these new tools provide micro-mechanical arguments to link the mass flow rate passing through the silo exit with the dilatancy of the material near the outlet [4, 5, 6]. In this work we summarize these arguments and show its applicability to different practical situations.

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