In this work we introduce a correlation to estimate the mass flow rate from an L-valve, without aeration, but under gravity flow, of a non-cohesive granular material. This criterion is based on the mass flow rate formula for vertical pipes and the comparison among, the here termed L-valve angle, and the angle of repose of the material. Experiments support this criterion.
Mass Flow Rate Granular Material Beach Sand Gravity Flow Vertical Pipis
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This work was made under the partial support of Project SIP20141404.
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