Silo clogging reduction by the presence of an obstacle.

  title={Silo clogging reduction by the presence of an obstacle.},
  author={Iker Zuriguel and Alvaro Janda and Angel Garcimart{\'i}n and Celia Lozano and Roberto Ar{\'e}valo and Diego Maza},
  journal={Physical review letters},
  volume={107 27},
We present experimental results on the effect that inserting an obstacle just above the outlet of a silo has on the clogging process. We find that, if the obstacle position is properly selected, the probability that the granular flow is arrested can be reduced by a factor of 100. This dramatic effect occurs without any remarkable modification of the flow rate or the packing fraction above the outlet, which are discarded as the cause of the change in the clogging probability. Hence, inspired by… CONTINUE READING

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