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arXiv · 0908.0258

Forced Granular Orifice Flow

Zheng Peng·Hepeng Zheng·Yimin Jiang
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Abstract

The flow of granular material through an orifice is studied experimentally as a function of force $F$ pushing the flow. It is found that the flow rate increases linearly with $F$ -- a new, unexpected result that is in contrast to the usual view that $F$, completely screened by an arch formed around the orifice, has no way of altering the rate. Employing energy balance, we show that this behavior results mainly from dissipation in the granular material.

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Zheng Peng, Hepeng Zheng, Yimin Jiang. 2009-09-06. Forced Granular Orifice Flow. https://arxiv.org/abs/0908.0258

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