Title |
Flux of granular particles through a shaken sieve plate
|
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Published in |
Scientific Reports, June 2015
|
DOI | 10.1038/srep09880 |
Pubmed ID | |
Authors |
Pingping Wen, Ning Zheng, Junwei Nian, Liangsheng Li, Qingfan Shi |
Abstract |
We experimentally investigate a discharging flux of granular particles through a sieve plate subject to vertical vibrations. The mean mass flux shows a non-monotonic relation with the vibration strength. High-speed photography reveals that two stages, the free flight of the particles' bulk over the plate and the adhesion of the particles' bulk with the plate, alternately appear, where only the adhesion stage contributes to the flow. With two independent methods, we then measure the adhesion time under different vibration conditions, and define an adhesion flux. The adhesion flux monotonically increases with increasing vibration strength. By rescaling the adhesion flux, we find that the adhesion flux is approximately determined by the peak vibration velocity of the shaker. The conclusion is examined with other sieve geometries. |
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