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›› 2017, Vol. 34 ›› Issue (2): 218-225.DOI: 10.7523/j.issn.2095-6134.2017.02.015

• Research Articles • Previous Articles     Next Articles

Influence of rotating velocity on particle mixing characteristics in a three-dimensional tumbler

ZHANG Ziwei1, GE Liang2, GUI Nan2, LI Zhenlin1, YANG Yang1   

  1. 1 College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China;
    2 Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
  • Received:2016-04-15 Revised:2016-10-17 Online:2017-03-15

Abstract: The mixing processes of carbon spherical particles in 3-D tumbler at five typical rotating speeds are simulated by using the open source software OpenFOAM utilizing soft sphere model of discrete element method. The evolution of particle mixing is investigated, and the structural characteristics of particle mixing in different regimes are illustrated. Moreover, with the help of the information entropy and a series of new mixing indexes, which are the difference value functions, we quantitatively analyze the influence of rotating velocity on particle mixing characteristics.

Key words: rotating drum, particle, mixing, discrete element method, information entropy

CLC Number: