Granular Flow and Clog in Silo with Moving Exit
Kiwing To1*
1Institute of Physics, Academia Sinica, Taipei, Taiwan
* presenting author:Kiwing To,
In this talk, I shall give a brief review on gravity driven granular flow through silos and hoppers. Phase transitions--dilute to dense [1], dense to clogged [2]--of flow on reducing the size of the exit, will be examined. Other factors such as modification of the exit [3], vibration [4], ... that affect the flow rate and clogging will be discussed. New experimental data on preventing clogging by the motion of the exit will be presented [5].

[1] M. Hou, et al, Phys. Rev. Lett. 91 204301(2003)
[2] Kiwing To, et al, Phys. Rev. Lett. 86, 71 (2001)
[3] Iker Zuriguel, et al, Phys. Rev. Lett. 107 278001(2011)
[4] Celia Lozano, et al, Phys. Rev. Lett. 109 068001(2012)
[5] Kiwing To, In preparation (2015)

Keywords: Granular Flow, Jam and Clog, Silo and Hopper