A lower granular temperature zone near the orifice in silos was found by speckle visibility spectroscopy technology.Surprisingly,the values of granular temperature in this area are inversely proportional to the mass discharge rate (MDR).This finding that links the macroscopic MDR with mesoscopic dynamics temperature of the particle system,is obtained by looking at the effect that different outlet sizes of silos on MDR and granular temperature field.Apart from evidencing the relevance of a parameter that has been traditionally overlooked in silos,this relationship supposes a benchmark with which to explore the influence of small orifice sizes on MDR.Among these,we found that the frequency of intermittent clogging and their dependence on the size of the outlet.

Quan Chen;Ran Li;Wengzheng Xiu;Vladimir Zivkovic;Hui Yang

School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;School of Medical Instrument and Food Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;School of Engineering,Newcastle University,NE17RU,United Kingdom

颗粒学报（英文版）

[1]Quan Chen;Ran Li;Wengzheng Xiu;Vladimir Zivkovic;Hui Yang-.Relationship between mass discharge rate and granular temperature of silo flow with variance of outlets)[J].颗粒学报（英文版）,2022(04):76-82

supposes

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