01584nas a2200181   4500008004100000022001400041245008500055210006900140260007900209300001100288490000700299520091600306100002001222700001601242700001801258700002101276856010501297       2014                        eng d  a1539-375500aFlow of granular matter in a silo with multiple exit orifices: jamming to mixing0 aFlow of granular matter in a silo with multiple exit orifices ja  aONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USAbAMER PHYSICAL SOCcDEC  a0622060 v903 a<p>We investigate the mixing characteristics of dry granular material while draining down a silo with multiple exit orifices. The mixing in the silo, which otherwise consists of noninteracting stagnant and flowing regions, is observed to improve significantly when the flow through specific orifices is stopped intermittently. This momentary stoppage of flow through the orifice is either controlled manually or is chosen by the system itself when the orifice width is small enough to cause spontaneous jamming and unjamming. We observe that the overall mixing behavior shows a systematic dependence on the frequency of closing and opening of specific orifices. In particular, the silo configuration employing random jamming and unjamming of any of the orifices shows early evidence of chaotic mixing. When operated in a multipass mode, the system exhibits a practical and efficient way of mixing particles.</p>1 aKamath, Sandesh1 aKunte, Amit1 aDoshi, Pankaj1 aOrpe, Ashish, V.  uhttps://library.ncl.res.in/content/flow-granular-matter-silo-multiple-exit-orifices-jamming-mixing-0